Texas Instruments TMS320C3x - Manual (Page 396)

Serial Ports
12-17 Peripherals
Figure 12–12. Memory-Mapped Locations for the Serial Ports
Serial-port 0 global control
{
Serial port 0 FSR/DR/CLKR control §
Serial port 0 R/X timer control ¶
Serial port 0 R/X timer counter #
Serial port 0 R/X timer period
k
Serial port 0 data transmit
l
808040h
808042h
808043h
808044h
808045h
808046h
808048h
80804Ch Serial port 0 data receive
j
Serial port 0 FSX/DX/CLKX control ‡
Serial-port 1 global control
{
Serial port 1 FSX/DX/CLKX control ‡
Serial port 1 FSR/DR/CLKR control §
Serial port 1 R/X timer control ¶
Serial port 1 R/X timer counter #
Serial port 1 R/X timer period
k
Serial port 1 data transmit
l
Serial port 1 data receive
j
808050h
808052h
808053h
808054h
808055h
808056h
808058h
80805Ch
Note: Serial port1 locations are reserved on the ’C31 and ’C32.
† See Figure 12–13.
‡ See Figure 12–14.
§ See Figure 12–15.
¶ See Figure 12–16.
# See Figure 12–17.
|| See Figure 12–18.
k
See Figure 12–19.
h
See Figure 12–20.
12.2.1 Serial-Port Global-Control Register
The serial-port global-control register is a 32-bit register that contains the global-
control bits for the serial port. The register is shown in Figure 12–13. Table 12–2
shows the register bits, bit names, and bit functions.