Bluetooth Transmit Data Module
Shanghai Ehong Technologies Inc
3 SPI_MOSI CMOS input, with weak
internal pull-down Serial Peripheral Interface data input
4 PIO6 Bi-directional with
programmable strength
internal pull-up/down Programmable input/output line
5 PIO7 Bi-directional with
programmable strength
internal pull-up/down Programmable input/output line
6 RESETB CMOS input with weak
internal pull-up Reset if low. Input denounced so must be
low for >5ms to cause a reset
7 SPI_CLK input with weak internal
pull-down Serial Peripheral Interface clock
8 PCM_CLK Bi-directional with weak
internal pull-down Synchronous Data Clock
9 PCM_SYNC Bi-directional with weak
internal pull-down Synchronous Data Sync
1
0 PCM_IN CMOS Input, with weak
internal pull-down Synchronous Data Input
11 PCM_OUT CMOS output, tristate, with
weak internal pull-down Synchronous Data Output
12 VDD_3V33V3power input 3V3power input
13 GND Ground Ground
14 GND Ground Ground
15 PIO11 Bi-directional with
programmable strength
internal pull-up/down Programmable input/output line
16 PIO10 Bi-directional with
programmable strength
internal pull-up/down Programmable input/output line
17 PIO9 Bi-directional with
programmable strength
internal pull-up/down Programmable input/output line
18 PIO8 Bi-directional with
programmable strength
internal pull-up/down Programmable input/output line
19 GND Ground Ground
20 UART_RXD CMOS input with weak
internal pull-down UART data input
21 UART_TXD CMOS output, tristate, with
weak internal pull-up UART data output
22 UART_RTS CMOS output, tri-state, with
weak internal pull-up UART request to send active low
23 UART_CTS CMOS input with weak
internal pull-down UART clear to send active low
