Freescale Semiconductor MPC5200B - Page 554

PSC Registers—MBAR + 0x2000, 0x2200, 0x2400, 0x2600, 0x2800, 0x2C00
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 15-43
15.2.43 Tx FIFO Write Pointer (0x96)—TFWPTR
15.2.44 Tx FIFO Last Read Frame (0x9A)—TFLRFPTR
15.2.45 Tx FIFO Last Write Frame PTR (0x9C)—TFLWFPTR
Bit Name Description
0:3 — Reserved
4:15 R_PTR Read pointer.This FIFO-maintained pointer points to the next FIFO location to be read
Table 15-70. Tx FIFO Write Pointer (0x96)
msb 012345678 9 101112131415 lsb
R
Reserved W_PTR
W
RESET:0 00000000 0 0 0 00 0 0
Bit Name Description
0:3 — Reserved
4:15 W_PTR Write pointer.This FIFO-maintained pointer points to the next FIFO location to be written to
Table 15-71. Tx FIFO Last Read Frame PTR (0x9A)
msb 012345678 9 101112131415 lsb
R
Reserved LFP
W
RESET:0 00000000 0 0 0 00 0 0
Bit Name Description
0:3 — Reserved
4:15 LFP Last Frame Pointer. Not applicable to PSC FIFOs, since the PSCs do not recognize frame
formats in the serial data stream
Table 15-72. Tx FIFO Last Write Frame PTR(0x9C)
msb 012345678 9 101112131415 lsb
R
Reserved LFP
W
RESET:0 00000000 0 0 0 00 0 0
Bit Name Description
0:3 — Reserved
4:15 LFP Last Frame Pointer. Not applicable to PSC FIFOs, since the PSCs do not recognize frame
formats in the serial data stream