TABLE 2 - ATAPI Register Names
|
CS1FX (CS0): Address
|
Read
|
Write
|
|
6
|
Alternate Status
|
Control
|
|
7
|
obsolete not used
|
obsolete not used
|
|
CS3FX (CS1): Address
|
Read
|
Write
|
|
0
|
Data Register
|
Data Register
|
|
1
|
Error
|
Feature
|
|
2
|
Interrupt Reason
|
not used
|
|
3
|
not used
|
not used
|
|
4
|
Byte Count Low
|
Byte Count Low
|
|
5
|
Byte Count High
|
Byte Count High
|
|
6
|
Device Select
|
Device Select
|
|
7
|
Status
|
Command
|