PSC Registers—MBAR + 0x2000, 0x2200, 0x2400, 0x2600, 0x2800, 0x2C00

MPC5200B Users Guide, Rev. 1

Freescale Semiconductor 15-15

15.2.6 Rx Buffer Register (0x0C) RB

Data are read from the Rx FIFO by reading from this read-only register. The Rx FIFO size is 512 bytes. To read data from the RX FIFO you

can also use the RFDATA register, see Section 15.2.30, Rx FIFO Data (0x60)—RFDATA.

Table15- 17. Rx Buffer Register (0x0C) for UART/SIR/MIR/FIR/Codec8/16/32
msb 012345678 9 101112131415
RRB[0:15]
WUsed by Tx Buffer
RESET:000000000 0 0 000 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
RRB[16:31]
WUsed by Tx Buffer
RESET:000000000 0 0 000 0 0

Table15-18. Rx Buffer Register (0x0C) for AC97

msb 012345678 9 101112131415
RRB[0:15]
WUsed by Tx Buffer
RESET:000000000 0 0 000 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
R RB[16:19] SOF Reserved
WUsed by Tx Buffer
RESET:000000000 0 0 000 0 0

Table 15-19. Rx Buffer Register (0x0C) for Codec24

msb 012345678 9 101112131415
RRB[0:15]
WUsed by Tx Buffer
RESET:000000000 0 0 000 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
RRB[16:23] Reserved
WUsed by Tx Buffer
RESET:000000000 0 0 000 0 0