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Publication No. SBC329-HRM/1
FPGA Registers 93
6.17 COM Port Availability Register (0x6A1)
Availability of COM2 is build option dependent.
Bits
Description
Default
7 to 2
COM ports 8 to 3 availability:
COM ports 8 to 3 are not available.
0 = COM port is not available
000000
b
1
COM2 availability:
0 = COM2 is not available
1 = COM2 is available
N/A
0
COM1 availability:
COM1 is always available.
1 = COM1 is available
1
6.18 COM Port 4-Wire Configuration Register (0x6A2)
Configuration of COM2 is build option dependent.
Bits
Description
Default
7 to 2
Reserved
000000
b
1
COM2 4-wire configuration:
0 = COM2 is available in 2-wire (TX/RX) mode only
1 = COM2 is available in 4-wire (RS232 or RS422) mode
N/A
0
COM1 4-wire configuration:
COM1 is only ever available in 2-wire mode.
0 =COM1 is available in 2-wire (TX/RX) mode only
0
6.19 COM Port Modem Configuration Register (0x6A3)
Bits
Description
Default
7 to 2
Reserved
000000
b
1
COM2 modem configuration:
Modem signal support is not available.
0 =Full modem line support is not available
0
0
COM1 modem configuration:
Modem signal support is not available.
0 =Full modem line support is not available
0