Specifications

RA7x/SA7x Pocket Reference Guide 21
Figure 10 RA7x Response Opcode (Byte 1)
X X X X X X X X
Byte 1 — Response Opcode
COM-R055
Figure 11 RA7x Lower Unit (Byte 2) and High Unit and
Subunit Mask (Byte 3)
0 0 0 1 X X X X
Drive select unit number
X X X X X X X X
Subunit 0 mask (subunit 0 reporting this status)
Subunit 1 mask (not used)
Subunit 2 mask (not used)
Subunit 3 mask (not used)
COM-R056
Byte 3
Byte 2