SMC256BFY6 STMICROELECTRONICS [STMicroelectronics], SMC256BFY6 Datasheet - Page 41

• Manufacturer Part Number: SMC256BFY6
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

SMCxxxBF
Table 35.
Task File Read
PIO Data Register
Write
DMA Data Register
Write
PIO Data Register
Read
DMA Data Register
Read
Control Register
Write
Alternate Status
Read
Drive Address
Function Code
True IDE Mode I/O Function (continued)
–
CS1
H
H
H
H
H
L
L
L
–
CS0
H
H
H
H
L
L
L
L
A2 to
1h-7h
A0
6h
6h
7h
X
X
0
0
-DMACK
H
H
H
H
H
H
L
L
–
IORD
H
H
H
L
L
L
L
L
–
IOWR
H
H
H
H
H
L
L
L
High Z
High Z
Odd-Byte Out
Odd-Byte Out
Odd-Byte In
Odd-Byte In
Don’t Care
D15 to D8
High Z
Card Configuration
Status Out
Data Out
Even-Byte Out
Even-Byte Out
Even-Byte In
Even-Byte In
Control In
D7 to D0
Data Out
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