S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
11.8 RDAT Registers
Register 0x300: RDAT Indirect Memory Command
Bit
15
14
13:4
3:0
Type
RO
R/W
Function
MEM_BUSY
MEM_RWB
Unused
Default
0
0
0
0
R/W
MEM_SELECT
Writing to this register triggers an indirect memory access to the RDAT tables. The indirect
memory address (and data register for write operations) must be configured prior to writing the
register.
MEM_SELECT
The indirect memory select indicates the memory table within the RDAT that will be
accessed.
MEM_SELECT
0x00
RDAT Memory Table
RDAT Link Statistics Memory
Address Range
0x000-0x00F
0x01
RDAT IMA Group Statistics
0x000-0x00F
Memory
0x02
0x03
0x04
0x05
RDAT TC Link Statistics Memory
RDAT Validation Memory
RDAT Link Context Memory
0x000-0x007
0x000-0x007
0x000-0x007
0x000-0x003
RDAT Link Message Status
Memory
0x06-0x07
0x08
Reserved
Receive ICP Cell Buffer
0x000-0x03F
0x09
RDAT IMA Group Context Memory 0x000-0x00F
0x0A
0x0B-0x0C
0x0D
RDAT TC Link Context Memory
Reserved
0x000-0x003
N/A
Receive ATM Congestion Count
Register
0x0E-0x0F
Reserved
MEM_RWB
The memory indirect access control bit (MEM_RWB) selects between a configure (write)
or interrogate (read) access to the RDAT internal memory. Writing a logic 0 to MEM_RWB
triggers an indirect write operation. Data to be written is taken from the Indirect Memory
Data registers. Writing a logic 1 to MEM_RWB triggers an indirect read operation. The read
data can be found in the Indirect Memory Data registers. The address within a memory table
can be found in the Indirect Memory Address register.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
209
PMC [ PMC-SIERRA, INC ]
