HP Q153090901 Technical Reference Manual page 122

02h
10h
11h
12h
13h
20h
21h
22h
23h
24h
25h
26h
27h
Buffer Offset The Buffer Offset field may be set to any address in the buffer, but must obey the specified Offset
Boundary.
The amount of data to return. Allocation Length + Buffer Offset must be within the buffer size.
Allocation
Length
Memory sizes:
Main Buffer Memory
Processor Memory
122 Commands
SCSI burst buffer
CM EEPROM
Mechanical EEPROM
Head assembly EEPROM
PCA EEPROM
Main buffer segment 0
Main buffer segment 1
Main buffer segment 2
Main buffer segment 3
Main buffer segment 4
Main buffer segment 5
Main buffer segment 6
Main buffer segment 7
Size: 128 MB, reported size FFFFFFh.
Because the buffer is greater than 16 MB, additional buffer IDs have been
defined to allow the buffer to be accessed in 16 MB segments. these are as
follows:
Buffer ID
20h
21h
22h
23h
24h
25h
26h
27h
Not all of the Processor Memory space is accessible. The following table
shows valid address segments:
Segment
Start Address
100000h
200000h
380000h
RAM 4 bytes
EEPROM 1 byte
EEPROM 1 byte
EEPROM 1 byte
EEPROM 1 byte
RAM 4 bytes
RAM 4 bytes
RAM 4 bytes
RAM 4 bytes
RAM 4 bytes
RAM 4 bytes
RAM 4 bytes
RAM 4 bytes
Address
00000000h + Buffer Offset (same as Buffer ID 00h)
01000000h + Buffer Offset (in other words, +16 MB)
02000000h + Buffer Offset (in other words, +32 MB)
03000000h + Buffer Offset (in other words, +48 MB)
04000000h + Buffer Offset (in other words, +64 MB)
05000000h + Buffer Offset (in other words, +80 MB)
06000000h + Buffer Offset (in other words, +96 MB)
07000000h + Buffer Offset (in other words, +112 MB)
Segment Size
100000h External flash
80000h External SRAM (if fitted)
80000h Formatter ASIC
see below for details
see below for details
see below for details
see below for details
see below for details
see below for details
see below for details
see below for details
Segment Description