Pi 2 Design Mercury V2, Hardware Reference Manual – P1
PAGE 2
Table of Contents
1 Warranty......................................................................................................................................................................................... 3
2 Operating Specifications ................................................................................................................................................................. 4
2.1 MERCURY V2 Operating specifications .................................................................................................................................. 4
3 Overview ........................................................................................................................................................................................ 5
3.1 Introduction ............................................................................................................................................................................. 5
3.2 Block Diagram......................................................................................................................................................................... 5
4 On-Board Devices .......................................................................................................................................................................... 7
4.1 Overview ................................................................................................................................................................................. 7
4.2
Compute Module 4........................................................................................................................................................... 7
4.2
USB2504A usb hub.......................................................................................................................................................... 7
4.3
WM8804 SPDIF Transmitter ............................................................................................................................................ 8
4.3.1
WM8804 SPDIF Transmitter Notes.............................................................................................................................. 8
4.4
Dual High Resolution NDK Clocks.................................................................................................................................... 8
4.5
RS-485 Differential Transmitter ........................................................................................................................................ 8
4.6
I2S Parallel Buffer ............................................................................................................................................................ 9
4.7
I2S Differential Driver ....................................................................................................................................................... 9
4.8
Audio Data Rate LED’s ..................................................................................................... Error! Bookmark not defined.
5
CM4 Ports and GPIO.............................................................................................................................................................. 10
5.1
Overview........................................................................................................................................................................ 10
5.2
Compute Module 4 Ports................................................................................................................................................ 10
5.2.1
CM4 Port Notes ......................................................................................................................................................... 10
5.3
Compute Module 4 GPIO............................................................................................................................................... 10
5.3.1
CM4 GPIO Notes....................................................................................................................................................... 12
6
MERCURY V2 Power ............................................................................................................................................................. 13
6.1
Overview........................................................................................................................................................................ 13
7
MERCURY V2 Software ......................................................................................................................................................... 15
8
Connector Locations............................................................................................................................................................... 16
8.1
Overview........................................................................................................................................................................ 16
8.2
Front and Rear PaneL and Interior Views....................................................................................................................... 16
8.3
Dual USB ....................................................................................................................................................................... 16
8.4
HDMI 0 and 1................................................................................................................................................................. 17
5.15
Micro-SD Card ............................................................................................................................................................... 17
8.5
Gigabit Ethernet ............................................................................................................................................................. 17
5.16
I2S Over HDMI............................................................................................................................................................... 17
8.6
DIP Switch ..................................................................................................................................................................... 18
8.7
DC Input Jack ................................................................................................................................................................ 18
5.17
TOSLINK OPTO ............................................................................................................................................................ 18
5.18
RCA SPDIF.................................................................................................................................................................... 18
8.8
XLR AES Balanced........................................................................................................................................................ 18
8.9
BNC AES Single Ended ................................................................................................................................................. 18
8.10
Parallel I2s over RJ45 .................................................................................................................................................... 18
10
Document Revisions ............................................................................................................................................................... 20
11
Errata...................................................................................................................................................................................... 21
11.15
Overview ................................................................................................................................................................... 21
List of Figures
Figure 1 – MERCURY V2 Block Diagram .......................................................................................................................................... 6
Figure 2 – MERCURY V2 Power, Simplified Block Diagram ............................................................................................................ 13
Figure 3 – MERCURY V2 Power Control Schematic........................................................................................................................ 13
Figure 4 – MERCURY V2 Front Panel ............................................................................................................................................. 16
Figure 5 – MERCURY V2 Rear Panel.............................................................................................................................................. 16
