Texas Instruments TPS65910 EVM Manuale utente

TPS65910 User Guide for OMAPL-137, OMAPL-

138, and TMS320C674x Family of Processors

User's Guide

Literature Number: SWCU071B

December 2010–Revised October 2015

Contents

1 Introduction......................................................................................................................... 4

2 Platform Connection............................................................................................................. 5

3 Power-Up Sequencing .......................................................................................................... 7

3.1 Power-Up Sequence for OMAPL-138 and TMS320C6742/6/8 Processors...................................... 7

3.2 Power-Up Sequence for OMAPL-137 Processor .................................................................... 7

3.3 Power-Up Sequence for TPS65910 ................................................................................... 8

4 Getting Started With TPS65910 and OMAPL-137, OMAPL-138, and TMS320C6742/6/8

Processors........................................................................................................................ 10

4.1 First Initialization........................................................................................................ 10

4.2 Event Management Through Interrupts.............................................................................. 11

Revision History.......................................................................................................................... 13

2Table of Contents SWCU071B–December 2010–Revised October 2015

Submit Documentation Feedback

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List of Figures

1 OMAPL-137 Power Supply Connections With TPS65910 ............................................................. 5

2 OMAPL-138, TMS320C6742/6/8 Power Connections With TPS65910 .............................................. 6

3 Power-Up Timing Diagram ................................................................................................. 9

List of Tables

1 Power Rail Requirements for OMAPL-138, TMS320C6742/6/8....................................................... 7

2 Power Rail Requirements for OMAPL-137............................................................................... 7

3 Power-Up Sequence for TPS65910....................................................................................... 8

4 EEPROM Configuration for TPS65910 ................................................................................... 9

SWCU071B–December 2010–Revised October 2015 List of Figures

User's Guide

SWCU071B–December 2010–Revised October 2015

TPS65910 User Guide For OMAPL-137, OMAPL-138, and

TMS320C674x Family of Processors

This user's guide can be used as a reference for connectivity between the TPS65910 power-management

integrated circuit (PMIC) and TI OMAPL, TMS320C674x processors.

1 Introduction

This user's guide can be used as a reference for connectivity between the TPS65910 PMIC and TI

OMAPL, TMS320C674x processors. This user guide does not provide details about the power resources

or the functionality of the device. For such information, refer to the full specification document, TPS65910

Data Manual.

4TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x SWCU071B–December 2010–Revised October 2015

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10 Fm

VFB2

SW2

VFBIO

SWIO

2.2 Fm

VDIG2

VIO

1000 mA

VCC1

VBAT

10 Fm

VDIG2

300 mA

VDIG1

300 mA

OMAPL-137

BOOT0

BOOT1

VFB1

2.2 Hm

SW1

VDD1

1500 mA 10 Fm

TPS65910

VCC2

VCCIO

VDIG1 RTC_CVDD

PowerPadä

VDDIO

VAUX2

300 mA

VAUX1

300 mA

VAUX1

VMMC

300 mA

VAUX33

150 mA

VAUX33

VPLL

50 mA

VDAC

150 mA

VDAC

VRTC

20 mA

VCC3

4.7 Fm

VCC4

VCC5

VCC6

VCC7

VBACKUP

5–2000 mF

OSC32KIN

OSC32KOUT

VRTC

12 pF

VREF

REFGND

100 nF

GND2

GND1

GNDIO

I2C0_SCL

SCL

I2C0_SDA

4.7 K

VIO

SDA

INT1

PWRON

NRESPWRON RESET

VBAT

GPIO_CKSYNC

(available)

TESTV

(not connected)

SW3

VFB3

VDD3

100 mA

10 K

0.6 1.5 V, DVS

12.5-m V step,

Default ON 1.2 V

–

Default ON 1.8 V

0.6 1.5 V, DVS

12.5-m V step,

Default ON 1.2 V

–

Default ON 1.2 V

Default ON 3.3 V

Default ON 1.8 V

Always-ON 1.8 V

Default ON 1.8 V

1.2/1.5/1.8/2.7 V

1.0/1.1/1.2/1.8 V

1.8/2.5/2.8/2.85 V

1.8/2.8/2.9/3.3 V

1.8/2.0/2.8/3.3 V

1.8/2.8/3.0/3.3 V

1.8/2.6/2.8/2.85 V

1.0/1.1/1.8/2.5 V

CLK32KOUT

VDD2

1500 mA

DVDD,

USB0_VDDA33,

USB1_VDDA33

RTC_XI

PWRHOLD

VIO

CVDD

USB0_VDDA18,

USB1_VDDA18

OSC

MMC

Audio IC

Available

4.7 HmVDD3 (for HDMI or OTG)

VBAT

(Typical 3.8 V)

10 Fm

VDD3 is a boost supplying 5 V.

If VBAT is 5 V then this will not

be useful.

PLL0_VDDA,

RVDD

IO/LPDDR

Available

VDDIO

VIO

GPIOx

SCLSR_EN1

SDASR_EN2

SWCU071-001

2.2 Hm

10 Fm

2.2 Fm

Default ON 3.3 V

2.2 Fm

4.7 K

10 Fm

4.7 Fm

12 pF

www.ti.com

Platform Connection

2 Platform Connection

Figure 1. OMAPL-137 Power Supply Connections With TPS65910

SWCU071B–December 2010–Revised October 2015 TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x

Family of Processors

SWCU071-002

VFB2

2.2 Hm

SW2

10 mF

VFBIO

SWIO

2.2 Fm

VDIG2

VIO

1000 mA

VCC1

VBAT

10 Fm

VDIG2

300 mA

VDIG1

300 mA

OMAPL-138

BOOT0

BOOT1

VFB1

2.2 Hm

SW1

VDD1

1500 mA

TPS65910

VCC2

VCCIO

VDIG1

RTC_CVDD

PowerPadä

VDDIO

VAUX2

300 mA

VAUX1

300 mA

VAUX1

VMMC

300 mA

VAUX33

150 mA

VAUX33

VPLL

50 mA

VDAC

150 mA

VDAC

VRTC

20 mA

VCC3

4.7 Fm

VCC4

VCC5

VCC6

VCC7

VBACKUP

5–2000 mF

OSC32KIN

OSC32KOUT

VRTC

12 pF

VREF

REFGND

100 nF

GND2

GND1

GNDIO

I2C0_SCL

SCL I2C0_SDA

4.7 K

VIO

SDA

INT1

PWRON

NRESPWRON RESET

VBAT

GPIO_CKSYNC

(available)

TESTV

(not connected)

SW3

VFB3

VDD3

100 mA

10 K

0.6 1.5 V, DVS

12.5-mV step,

Default ON 1.2 V

–

Default ON 1.8 V

0.6 1.5 V, DVS

12.5-mV step,

Default ON 1.2 V

–

Default ON 1.2 V

Default ON 3.3 V

Default ON 1.8 V

Always-ON 1.8 V

Default ON 1.8 V

1.2/1.5/1.8/2.7 V

1.0/1.1/1.2/1.8 V

1.8/2.5/2.8/2.85 V

1.8/2.8/2.9/3.3 V

1.8/2.0/2.8/3.3 V

1.8/2.8/3.0/3.3 V

1.8/2.6/2.8/2.85 V

1.0/1.1/1.8/2.5 V

CLK32KOUT

VDD2

1500 mA

Accelerometer/

USB0_VDDA33,

USB1_VDDA33

RTC_XI

PWRHOLD

VIO

CVDD

USB0_VDDA18,

USB1_VDDA18,

DDR_DVDD18,

SATA_VDDR,

DVDD18

OSC

Audio IC

Available

4.7 HmVDD3 (for HDMI or OTG)

VBAT

(Typical 3.8 V)

10 mF

VDD3 is a boost supplying 5 V.

If VBAT is 5 V then this will not

be useful.

RVDD,

PLL0_VDDA,

PLL1_VDDA,

SATA_VDD,

USB_CVDD,

USB0_VDDA12

DVDD3318_A, (see note)

DVDD3318_B,

DVDD3318_C

Available

VDDIO

VIO

GPIOx

SCLSR_EN1

SDASR_EN2

10 Fm

4.7 Fm

10 mF

2.2 Hm

2.2 Fm

10 mF

2.2 Fm

4.7 K

Platform Connection

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NOTE: If only 1.8 V operation is required, then these domains can be merged with 1.8 V on VIO.

Figure 2. OMAPL-138, TMS320C6742/6/8 Power Connections With TPS65910

At power up, the maximum current capability (default setting) of the DCDC converters is as follows:

6TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x SWCU071B–December 2010–Revised October 2015

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Power-Up Sequencing

• VIO(max) = 500 mA

• VDD1(max) = 1000 mA

• VDD2(max) = 1000 mA

To have the maximum current capability, the user must program the following register bits:

• VIO_REG[ILMAX] = b01 for 1 A

• VDD1_REG[ILMAX] = b1 for 1.5 A

• VDD2_REG[ILMAX] = b1 for 1.5 A

3 Power-Up Sequencing

3.1 Power-Up Sequence for OMAPL-138 and TMS320C6742/6/8 Processors

The following sections show the power-up sequence requirement for OMAPL-138 and TMS320C6742/6/8

processors. To power on the system, the user must press and release the PWRON switch (generating a

negative pulse). The BOOT pads on the TPS65910 must be connected as follows:

• BOOT0 = 0

• BOOT1 = 1

Table 1 lists the power rail requirements for OMAPL-138, TMS320C6742/6/8.

Table 1. Power Rail Requirements for OMAPL-138, TMS320C6742/6/8

Power Domain Pin Name Imax (mA) Voltage (V) Sequence

I/O RTC_CVDD 1 1.2 1(1)

Core CVDD(2) 600 1.0/1.1/1.2 2

I/O RVDD, PLL0_VDDA, PLL1_VDDA, SATA_VDD, 200 1.2 3

USB_CVDD, USB0_VDDA12

I/O USB0_VDDA18, USB1_VDDA18, DDR_DVDD18, 180 1.8 4

SATA_VDDR, DVDD18

I/O USB0_VDDA33, USB1_VDDA33(3)(4) 24 3.3 5

I/O DVDD3318_A, DVDD3318_B, DVDD3318_C 90(5) 3.3 5

(1) If RTC is not used/maintained on a separate supply, it can be included in the STATIC12 (fixed 1.2 V) group.

(2) If using CVDD at fixed 1.2 V, all 1.2-V rails may be combined. CVDD can support 1.3 V; in this case SMPS (VDD1) supplying

CVDD core can be set to 1.3-V after initial power up.

(3) If 1.8-V LVCMOS is used, power rails up with the 1.8-V rails. If 3.3-V LVCMOS is used, power it up with the ANALOG33 rails

(VDDA33_USB0/1).

(4) There is no specific required voltage ramp rate for any of the supplies LVCMOS33 (USB0_VDDA33, USB1_VDDA33) that

never exceeds STATIC18 by more than 2 V.

(5) If DVDD3318_A, B, and C are powered independently, maximum power for each rail will be 1/3 the above maximum power.

These rails can be connected independently to 1.8 or 3.3 V.

3.2 Power-Up Sequence for OMAPL-137 Processor

Table 2 lists the power rail requirements for OMAPL-137.

Table 2. Power Rail Requirements for OMAPL-137

Power Domain Pin Name Imax (mA) Voltage (V)(2) Sequence

Core RTC_CVDD(1) 0.1 1.2 1

CVDD 600 1.2 2

PLL0_VDDA, RVDD 60 1.2 3

I/O USB0_VDDA18, USB1_VDDA18 50 1.8 5

I/O DVDD, USB0VDDA33, USB1_VDDA33 115 3.3 4

SWCU071B–December 2010–Revised October 2015 TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x

Family of Processors

Power-Up Sequencing

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(1) RTC_CVDD can be combined with PLL and RAM 1.2-V supplies if desired to turn off RTC when device is off. Otherwise, power

RTC_CVDD separately with a dedicated power source.

(2) Sequencing 1.2-V supplies:

(a) RTC (RTC_CVDD) may be powered from an external device (such as a battery) before all other supplies are applied. If the

RTC is not used, RTC_CVDD must be connected to CVDD.

(b) Group 2a: CVDD core logic supply. CVDD can support 1.3 V, in this case SMPS (VDD1) supplying CVDD core can be set

to 1.3 V after initial power up.

followed by 2b.

NOTE: To correctly power on the device, the PWRHOLD signal must be high after PWRON is

pressed. In this configuration the PWRHOLD signal on TPS65910 is connected to VIO.

PWRHOLD transitions to high when VIO powers up.

3.3 Power-Up Sequence for TPS65910

To satisfy the power-up requirements for the OMAPL-138 and TMS320C6742/4/6 processorsprocessor,

the TPS65910 powers up with the default sequence when in the EEPROM boot mode configuration

(BOOT0 = 0 and BOOT1 = 1) (see Table 3). The correct power-up sequence is configured in the

EEPROM (factory programmable only).

Apart from the main power rails required by the processors, all other rails are also powered up at initial

power up to support other system peripherals.

Figure 3 shows a typical power-up timing diagram.

Table 3 shows the power-up sequence.

Table 3. Power-Up Sequence for TPS65910

TPS65910 Power Rail Voltage (V) Sequence Number Delay (ms)

PWRON(1) – –

VDIG1 1.2 1 2

VDD1 1.2 2 2

VDD2 1.2 3 2

VIO 1.8 4 2

VDIG2 1.2 4 0

VAUX33 3.3 5 2

VMMC 3.3 5 0

VAUX1 1.8 6 2

VAUX2 3.3 6 0

VDAC 1.8 7 2

VPLL 1.8 7 0

(1) The PWRON signal is the start-on event. All timings listed are with respect to the previous event.

8TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x SWCU071B–December 2010–Revised October 2015

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SWCU071-003

PWRON button

VDD_RTC/ VRTC 1.8 V

CLK32KOUT TPS65910 internal clock 32 kHz released to processor

VDIG1 1.2 V

VDD1 1.2 V

VDD2 1.2 V

VIO 1.8 V

VDIG2 1.2 V

VAUX33 3.3 V

VMMC 3.3 V

VAUX1 3.3 V

VAUX2 3.3 V

VDAC 1.8 V

VPLL 1.8 V

Event: 1 2 3

Time slot (2 ms between slot): 0 1 2 3 4 5 6 7

Event description: 1 PWRON button press falling edge

2 Valid press after debounce

3 First step of power-up sequence available for DCDC, LDO activation. Time slot 0 is for internal use.

Note: PWRON press must be maintained until PWRHOLD acknowledge, or, for shorter PWRON press,

PWRHOLD must go high within 984 ms of valid PWRON press (event 2). To ensure this, PWRHOLD is tied to VIO.

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Power-Up Sequencing

Figure 3. Power-Up Timing Diagram

Table 4. EEPROM Configuration for TPS65910

VDD1_OP_REG SEL VDD1 voltage level selection for boot 1.2 V

VDD1_REG VGAIN_SEL VDD1 gain selection, x1 or x2 x1

EEPROM VDD1 time slot selection 2

DCDCCTRL_REG VDD1_PSKIP VDD1 pulse skip mode enable Skip enabled

VDD2_OP_REG / SEL VDD2 voltage level selection for boot 1.2 V

VDD2_SR_REG

VDD2_REG VGAIN_SEL VDD2 gain selection, x1 or x3 x1

EEPROM VDD2 time slot selection 3

DCDCCTRL_REG VDD2_PSKIP VDD2 pulse skip mode enable Skip enabled

VIO_REG SEL VIO voltage selection 1.8 V

EEPROM VIO time slot selection 4

DCDCCTRL_REG VIO_PSKIP VIO pulse skip mode enable Skip enabled

EEPROM VDD3 time slot OFF

VDIG1_REG SEL LDO voltage selection 1.2

EEPROM LDO time slot 1

VDIG2_REG SEL LDO voltage selection 1.2 V

EEPROM LDO time slot 4

VDAC_REG SEL LDO voltage selection 1.8 V

EEPROM LDO time slot 7

SWCU071B–December 2010–Revised October 2015 TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x

Family of Processors

Getting Started With TPS65910 and OMAPL-137, OMAPL-138, and TMS320C6742/6/8 Processors

www.ti.com

Table 4. EEPROM Configuration for TPS65910 (continued)

VPLL_REG SEL LDO voltage selection 1.8 V

EEPROM LDO time slot 7

VAUX1_REG SEL LDO voltage selection 1.8 V

EEPROM LDO time slot 6

VMMC_REG SEL LDO voltage selection 3.3 V

EEPROM LDO time slot 5

VAUX33_REG SEL LDO voltage selection 3.3 V

EEPROM LDO time slot 5

VAUX2_REG SEL LDO voltage selection 3.3 V

EEPROM LDO time slot 6

CLK32KOUT pin CLK32KOUT time slot 7

NRESPWRON pin NRESPWRON time slot 7 + 1

VRTC_REG VRTC_OFFMASK 0 = VRTC LDO will be in low-power mode during Low-power mode

OFF state.

1 = VRC LDO will be in full-power mode during

OFF state.

DEVCTRL_REG RTC_PWDN 0 = RTC in normal power mode 1

1 = Clock gating of RTC register and logic, low-

power mode

DEVCTRL_REG CK32K_CTRL 0 = Clock source is crystal/external clock. Crystal

1 = Clock source is internal RC oscillator.

DEVCTRL2_REG TSLOT_LENGTH Boot sequence time slot duration: 2 ms

0 = 0.5 ms

1 = 2 ms

DEVCTRL2_REG IT_POL 0 = INT1 signal will be active low. 1

1 = INT1 signal will be active high.

INT_MSK_REG VMBHI_IT_MSK 0 = Device automatically switches on at NO 0 = Automatic switch on

SUPPLY-to-OFF or BACKUP-to-OFF transition. from supply insertion

1 = Start-up reason is required before switch-on.

VMBCH_REG VMBCH_SEL[1:0] Select threshold for main battery comparator 3 V

threshold VMBCH.

4 Getting Started With TPS65910 and OMAPL-137, OMAPL-138, and TMS320C6742/6/8

Processors

4.1 First Initialization

4.1.1 I/O Polarity/Muxing Configuration

Program DEVCTRL2_REG.SLEEPSIG_POL according to the GPIO from the processor. This can be set to

active low or active high for SLEEP transition. Software configuration allows specific power resources to

enter low consumption state.

Set DEVCTRL_REG.DEV_SLP = 1 to allow SLEEP transition when requested.

Update the GPIO0 configuration (GPIO0_REG) based on your needs.

4.1.2 Define Wake-Up/Interrupt Event (SLEEP or OFF)

Select the appropriate bits in the INT_MSK_REG and INT_MSK2_REG registers to activate an interrupt to

the processor on the INT1 line.

10 TPS65910 User Guide For OMAPL-137, OMAPL-138, and TMS320C674x SWCU071B–December 2010–Revised October 2015

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