
JULY 2007 MAGNUM 224, MAGNUM 448, STORAGELIBRARY T24, OR STORAGELOADER 2U
14-3
WHAT THE LIBRARY RETURNS
Allocation Length – Bytes 06 through 08
This field specifies the number of bytes to be transferred by the current READ
BUFFER command. If the number of bytes specified is larger than the buffer
size, only the number of bytes in the buffer will be returned.
14.3 WHAT THE LIBRARY RETURNS
Offset Boundary – Byte 00
This field specifies the boundary alignment within the buffer as a power of
two number of bytes. The buffer has a boundary alignment of 4 (2
2
) so the
value of this field will always be 2h.
Mode Allocation length specifies the number of...
001b
bytes of firmware code to return
Up to 100100h bytes may be returned.
010b
data bytes to return
Up to FFE0h bytes may be returned.
011b
header bytes to return
This should be at least 4.
Value Mode Description
00h
001b Read data from Firmware EPROM
010b
Read data from Read/Write buffer as set by Write
Buffer command
011b
Read Offset and Buffer length information for
Read/Write Buffer
Format is shown in the following table.
Bit
Byte
7 6 5 4 3 2 1 0
00 Offset Boundary
01 (MSB)
Buffer Capacity
(LSB)
02
03
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