TPMC632 User Manual Issue 1.0.6
Page 25 of 49
User GPIO
4.8
The TPMC632 has some general purpose I/O and debug signals connected to FPGA Bank 1. The required
signaling standard is LVCMOS15, due to Memory Controller Block usage.
Two pins of the FPGA are routed to the Debug Connector for use as debug interface (UART). This is not a
real RS-232 interface. A RS-232 transceiver or USB-UART that can work with 1.5V I/O voltage should be
connected to these signals such as TEWS TA900.
A general purpose I/O Signal is also connected to the Debug Connector. When used with the TEWS TA900,
this signal is connected to a Push button and must be configured as FPGA input.
Signal
Bank
V
CCO
Pin
Description
GPIO_LED0
1
1.5V
M16
4x green on board LEDs
GPIO_LED1
N15
GPIO_LED2
U19
GPIO_LED3
T20
FPGA_BUT
1
1.5V
D21
General Purpose User I/O
FPGA_RXD
1
1.5V
L15
Serial Debug Interface is accessible via TEWS
debug-connector.
FPGA_TXD
1
1.5V
K16
Table 4-9 : FPGA General Purpose I/O