Commands 113
Commands
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
