F71872
1
1
0
1
DENSEL#
DATARATE0
7.2.3 Device Registers
7.2.3.1 Status Register A (PS/2 mode) Base + 0
Bit
Name
R/W Default
Description
7
6
INTPEND
R
R
0
-
This bit indicates the state of the interrupt output.
DRV2_N
0: a second drive has been installed.
1: a second drive has not been installed.
5
4
3
STEP
R
R
R
0
-
This bit indicates the complement of STEP# disk interface output.
This bit indicates the state of TRK0# disk interface input.
TRK0_N
HDSEL
0
This bit indicates the complement of HDSEL# disk interface output.
0: side 0.
1: side 1.
2
1
INDEX_N
WPT_N
R
R
-
-
This bit indicates the state of INDEX# disk interface input.
This bit indicates the state of WPT# disk interface input.
0: disk is write-protected.
1: disk is not write-protected.
0
DIR
R
0
This bit indicates the complement of DIR# disk interface output.
7.2.3.2 Status Register A (Model 30 mode) Base + 0
Bit
Name
R/W Default
Description
7
6
5
4
3
INTPEND
R
R
R
R
R
0
0
0
-
This bit indicates the state of the interrupt output.
DRQ
This bit indicates the state of the DRQ signal.
STEP_FF
TRK0
This bit indicates the complement of latched STEP# disk interface output.
This bit indicates the complement of TRK0# disk interface input.
HDSEL_N
1
This bit indicates the state of HDSEL# disk interface output.
0: side 0.
1: side 1.
2
1
INDEX
WPT
R
R
-
-
This bit indicates the complement of INDEX# disk interface input.
This bit indicates the complement of WPT# disk interface input.
0: disk is write-protected.
1: disk is not write-protected.
0
DIR_N
R
1
This bit indicates the state of DIR# disk interface output.
0: head moves in inward direction.
1: head moves in outward direction.
37
July, 2007
V0.28P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
