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XC-1A Hardware Manual (1.2)
13 XC-1A Block Diagram
The diagram below shows how the XC-1A components are connected to the XS1-G4.
Processor 0
PORT_CLOCKLED_0[I-III]
PORT_CLOCKLED_SELR/SELG
PORT_BUTTON [A:D]
PORT_SPEAKER
PORT_SPI_MISO
SPI
PORT_SPI_SS
Flash
PORT_SPI_CLK
Memory
PORT_SPI_MOSI
13.1 I/O Port-to-Pin Mapping
The table on the next page provides a full description of the port-to-pin mappings
described throughout this document.
PORT_BUTTONLED [A:D]
XS1-G4
PROTOTYPE
AREA
www.xmos.com
Processor 1
Processor 2
A
I/O HEADER A
I/O HEADER A
System Services
RST
CLOCK
20MHz
XTO
Processor 3
A
A
I/O HEADER A/B
PORT_UART_RX
PORT_UART_TX
SS_TDO
SS_TDI
SS_TMS
SS_TCK
SS_TRST
SS_DEBUG
SS_RESET
5V
1V
PSU
3V3
14/18
B
5V
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