Specifications

RA7x/SA7x Pocket Reference Guide 27
Figure 17 RA7x Drive State Byte (Byte 10)
X X X X X X X X
AV 1 = Available asserted
Byte 10
Drive State Bit Flags
OL 1 = Drive in on-line status
TP 1 = Drive executing level 2 topology command
AT 1 = Attention asserted
TG 1 = Sector + index timing enabled for transmission 
via RTDS line
RW 1 = Drive is internal read/write ready
SF 1 = Soft fault detected; possibly clearable via 
level 2 clear command
HE 1 = Hard error; drive must be power-cycled to attempt 
to clear this error
COM-R062
Contains a number representing state 
of drive at time of error
Figure 18 RA7x Current Cylinder Address (Bytes 11
and 12)
X X X X X X X X
Cylinder requested during last seek command
X X X X X X X X
COM-R063
Byte 11Byte 12