Returned data – HP C737990900 User Manual
Page 113
Commands 113
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Returned Data:
The format of the 4-byte descriptor for Mode 00000b is as follows:
The format of the 4-byte descriptor for Mode 00011b is as follows:
23h
03000000h + Buffer Offset (in other words, +48 MB)
Processor Memory
Not all of the Processor Memory space is accessible. The following table shows valid
address segments:
Segment
Start Address
Segment End
Address
Segment Size
Segment Description
000000h
13FFFFh
1 MB + 256 KB
Controller ASIC flash
180000h
1BFFFFh
512 KB.
External SRAM (if fitted)
200000h
23FFFFh
256 KB
Formatter ASIC
240000h
27FFFFh
256 KB
Servo Controller ASIC
280000h
29FFFFh
128 KB
Host Interface ASIC (minus buffer)
FF8000h
FFEFFFh
28 KB
Controller internal SRAM
SCSI Burst Buffer
SCSI drives: 192 KB
FC drives: 7F0000 bytes
LTO-Cartridge Memory
Size = 4 KB
Mechanism EEPROM
Size = 8 KB
Head Assembly EEPROM
Size = 8 KB
PCA EEPROM
Size = 32 KB
7
6
5
4
3
2
1
0
0
Reserved (0)
1
(MSB)
Buffer Capacity
2
3
(LSB)
7
6
5
4
3
2
1
0
0
Buffer Offset Boundary