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MACCHIATObin Interface list

Introduction

This page offers information on the connectors and interfaces available on a MACCHIATObin board. It also contains the on board DIP switch settings to configure the board to boot from different sources and CPU/DDR settings.

I/O Ports and connectors

The picture and table below illustrate all the interfaces available on the MACCHIATObin board.

Sr A8040 Topview


TDM Header pinout

Sr A8040 Tdmheader
Pin-1 is marked on the PCB board.

PinFunctionConnection PinFunctionConnection
1SPI CSnCP1 MPP12 2SPI MISOCP1 MPP13
3SPI MOSICP1 MPP15 4SPI CLKCP1 MPP16
5I2C SDACP0 MPP38 6I2C SCLCP0 MPP37
7TDM INTnCP1 MPP5 8TDM RSTnCP1 MPP4
9TDM DTXCP1 MPP2 10TDM PCLKCP1 MPP0
11TDM DRXCP1 MPP1 12TDM FSYNCCP1 MPP3
13Ground 14Ground
1512V 163.3V

UART Header pinout

Sr A8040 Uart
Pin-1 is marked on the PCB board.

J27 on the PCB (1) J25 on the PCB (2)
PinFunctionConnection PinFunctionConnection
1Ground 1Ground
2RXD (In)CP1 MPP6 2RXD (In)CP0 MPP41
3TXD (Out)CP1 MPP7 3TXD (Out)CP0 MPP40

FAN Header pinout

Sr A8040 Fan
Pin-1 marked on PCB board.

PinFunctionConnection
1PWMCP0 MPP48
2N.C.
312V
4Ground

Boot Selection

Sr A8040 Dippy

Boot sourceSW2[1]SW2[2]SW2[3]SW2[4]SW2[5]SW1[1]
SPI ROMOFFOFFOFFONONOFF
SD CARDOFFONONONOFFON
eMMCOFFONONONONOFF

Frequency Selection

CPU(MHz)DDR(MTps)SW1[2]SW1[3]SW1[4]SW1[5]
13331600ONOFFONON
16002100ONONONOFF
20002100OFFONOFFOFF

PCIe reset fix (up to rev 1.2)


To see how to fix your MACCHIATObin board (rev 1.2 and lower) to support correct PCIe reset when plugging in GPUs, see MACCHIATObin (up to rev 1.2) PCIe reset fix.