Board Users Guide

FEC Tx FIFO Status Register—MBAR + 0x31A8
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 14-33
14.8.6 FEC Rx FIFO Write Pointer Register—MBAR + 0x31A0
FEC Tx FIFO Writer Pointer Register—MBAR + 0x31C0
The RFIFO_WRPTR and TFIFO_WRPTR are a FIFO-maintained pointer which point to the next FIFO location to be written. The write
pointer can be both read and written.
14.8.7 FEC Reset Control Register—MBAR + 0x31C4
The RESET_CNTRL register allows reset of the FIFO controllers.
Table 14-37. FEC Rx FIFO Write Pointer Register
FEC Tx FIFO Write Pointer Register
msb 012345678 9 101112131415
R
Reserved
W
RESET:0 00000000 0 0 0 00 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
R
Reserved WRITE[9:0]
W
RESET:0 00000000 0 0 0 00 0 0
Bits Name Description
0:21 — Reserved
22:31 WRITE[9:0] WRITE Pointer.
This pointer indicates the next location to be written by the FIFO controller.
Table 14-38. FEC Reset Control Register
msb 012345678 9 101112131415
R
Reserved
RCTL[1] RCTL[0]
Reserved
W
RESET:0 00000000 0 0 0 00 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
R
Reserved
W
RESET
:
0 00000000 0 0 0 00 0 0
Table 1-1.
Bits Name Description
0:5 — Reserved
6 RCTL[1] 0 = Do not Reset FIFO controllers.
1 = Reset FIFO controllers.