Avago Technologies LSI53C1010 - Manual (Page 51)

Instruction Descriptions 3-11
Definition Wide SCSI Block Move.
Operands This command has the following operands:
Example CHMOV FROM dev_1 WITH Data_In
CHMOV 6, data_buf, WHEN Data_Out
FROM Indicates table indirect addressing mode.
Note: FROM and PTR must not be used in the same instruction.
count Number of bytes to transfer across the SCSI bus.
PTR Sets the indirect bit if present, it is cleared otherwise.
Note: PTR and FROM must not be used in the same instruction.
address The 32-bit starting address of the data in memory, unless PTR
is present. If PTR is present, address represents the location of
the starting address.
WITH/WHEN Sets device mode; WITH for target mode and WHEN for initiator
mode.
Phase Specifies the Message, Command/Data, and Input/Output bit
values that identify the SCSI phase in the instruction. The
desired phase value is compared with the actual values of the
SCSI phase lines before the SCRIPTS processor performs the
instruction. This field is only valid for the initiator mode and
should not be used in the target mode.
Figure 3.3 CHMOV Format
31 30 29 28 27 26 24 23 0
DCMD Register DBC Register
Instr
Type
Indirect
Table
Indirect
Opcode
SCSI
Phase
Byte Count
0 0 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
31 0
DSPS Register
Destination Address
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x