Mib Block Counters Memory Map - Freescale Semiconductor MPC5200B User Manual

FEC Memory Map and Registers
Address
144
148-180
184
188
18C
190
194
198
19C
1A0
1A4
1A8
1AC
1B0
1B4
1B8
1BC
1C0
1C4
1C8
1CC-1FF
14.4.2

MIB Block Counters Memory Map

Table 14-8 defines the MIB Counters memory map which defines the MIB RAM space locations where hardware-maintained counters reside.
These fall in the 3200-33FF address range. Counters are divided into two groups.
1. RMON counters—are included which cover Ethernet statistics counters defined in RFC 1757. In addition to Ethernet statistics
group counters, a counter is included to count truncated frames as FEC only supports frame lengths up to 2047bytes. RMON
counters are implemented independently for Tx and Rx, to ensure accurate network statistics when operating in full-duplex mode.
2. IEEE counters—are included which support the mandatory and recommended counter packages defined in Section 5 of
ANSI/IEEE Standard 802.3 (1998 edition). FEC supports IEEE Basic Package objects, but does not require MIB block counters.
In addition, some recommended package objects supported do not require MIB counters. Counters for Tx and Rx full-duplex flow
control frames are included.
14-8
Table 14-7. CSR Counters
Mnemonic
X_WMRK Transmit FIFO Watermark
Reserved
RFIFO_DATA Receive FIFO Data
RFIFO_STATUS Receive FIFO Status
RFIFO_CONTROL Receive FIFO Control
RFIFO_LRF_PTR Receive FIFO Last Read Frame Pointer
RFIFO_LWF_PTR Receive FIFO Last Write Frame Pointer
RFIFO_ALARM Receive FIFO Alarm Pointer
RFIFO_RDPTR Receive FIFO Read Pointer
RFIFO_WRPTR Receive FIFO Write Pointer
TFIFO_DATA Transmit FIFO Data
TFIFO_STATUS Transmit FIFO Status
TFIFO_CONTROL Transmit FIFO Control
TFIFO_LRF_PTR Transmit FIFO Last Read Frame Pointer
TFIFO_LWF_PTR Transmit FIFO Last Write Frame Pointer
TFIFO_ALARM Transmit FIFO Alarm Pointer
TFIFO_RDPTR Transmit FIFO Read Pointer
TFIFO_WRPTR Transmit FIFO Write Pointer
RESET_CNTRL Reset Control
XMIT_FSM Transmit FSM
MPC5200B Users Guide, Rev. 1
Name
Freescale Semiconductor