Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
Table 23. Microprocessor Ports Summary (Continued)
Read or
Byte
Long
Name
Description
Address Address
Write
84h-9Ch
21h-27h
Not used
R
Driven with a 0. Mask on reads to maintain compatibil-
ity with future versions.
A0h
A4h
A8h
28h
29h
2Ah
RX_QUEUE_ENGINE_TEST
TX_QUEUE_ENGINE_TEST
R/W
R/W
R
Receive queue engine test/debug register.
Transmit queue engine test/debug register.
Current status of queue engine failure detection bits.
QUEUE_ENGINE_CONDI
TION_PRES_BITS
ACh
B0h
2Bh
2Ch
QUEUE_ENGINE_CONDITI
ON_LATCH_BITS
R/W
R/W
R
Latched version of queue engine failure detection bits.
QUEUE_ENGINE_INT_MAS
K
Interrupt mask for the queue engine failure detection
bits.
B4h-FCh
2Dh-3Fh Not used
Driven with a 0. Mask on reads to maintain compatibil-
ity with future versions.
100h -
7BFFCh
40h -
1EFFFFh
Not used
Driven with a 0. Mask on reads to maintain compatibil-
ity with future versions.
7C0000h
7C0004h
1F0000h RX_DIR_CONFIG
1F0001h RX_DIR_STATE
R/W
R/W
R
Sets the congestion threshold for the receive direction.
Indicates the current queue depth for this SC.
Do not initialize.
7C0008h- 1F0002h- Reserved
7C001Fh
1F0007h
7C0020h
1F0008h TX_DIR_CONFIG
R/W
R/W
Sets the congestion threshold for the transmit direction.
Indicates the current state of the transmit direction.
7C0024h
Or
1F0009h TX_DIR_STATE
Or
7C00A4h
1F0029h
7C0028h- 1F000Ah- Reserved
R
R
Do not initialize.
7C003Ch
1F000Fh
7C0040h
1F0010h RX_SENT_CELLS
Twenty-four-bit counter of cells sent in the receive
direction.
7C0044h
7C0048h
7C004Ch
7C0050h
1F0011h RX_DROPPED_CELLS
1F0012h TX_SENT_CELLS
R
Twenty-four-bit counter of cells dropped in the receive
direction.
R
Twenty-four-bit counter of cells sent in the transmit
direction.
1F0013h TX_DROPPED_CELLS
R
Twenty-four-bit counter of cells dropped in the transmit
direction.
1F0014h RX_LOWER16_SCG_CONFI
G
R/W
Configuration of the Rx Lower 16 Service Class Group.
7C0054h
7C0058h
1F0015h RX_LOWER16_SCG_STATE
R/W
R/W
State of the Rx Lower 16 Service Class Group.
1F0016h RX_LOWER32_SCG_CONFI
G
Configuration of the Rx Lower 32 Service Class Group.
7C005Ch
1F0017h RX_LOWER32_SCG_STATE
R/W
State of the Rx Lower 32 Service Class Group.
99
PMC [ PMC-SIERRA, INC ]
