ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 360

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

IBM3206K0424
IBM Processor for Network Resources
12.39: RXLCD Cache Data Array Read/Write Port
Provides read/write access to the LCD cache data array. When this register is read/written, the address
provided by RXLCD Cache Data Array Address Port is used to select the array word to be accessed. RXLCD
Cache Data Array Address Port is auto-incremented on each read/write so this port can be read/written multi-
ple times to read/write the entire array.
The cache is organized as 64 32-bit words. Each 16 words comprises an LCD. The first four words and the
last word of each LCD do not contain valid data and can not be written. These locations return zero on reads.
Length
Type
Address
Power On Value
Restrictions
12.40: RXLCD Cache Line Info Registers
These registers provide the cache line tags, valid, and dirty bits. There is a register for each of the four cache
lines.
Length
Type
Address
Power On Value
Restrictions
Cell/Packet Re-assembly (REASM)
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31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
30-20
19-17
Bit(s)
15-0
31
16
Valid
Dirty bits
LRU bits
Reserved
LCD index
Dirty
64 words x 32 bits
Read/Write
XXXX 1788
X’00000000’
Must be in diagnostic mode to read/write the cache
4 x 32 bits
Read/Write
XXXX 17a0-7ac
X’00000000’
Must be in diagnostic mode to write these registers
LRU
Description
9
LCD Index
8
7
6
5
4
pnr25.chapt05.01
August 14, 2000
3
Preliminary
2
1
0