Cypress CY7C67300 Manual De Usuario
CY7C67300
Document #: 38-08015 Rev. *J
Page 55 of 99
IDE PIO Port Registers [0xC050 - 0xC06F] [R/W]
All IDE PIO Port registers [0xC050 - 0xC06F] in
are defined in detail in the Information Technology-AT Attachment -4 with
Packet Interface Extension (ATA/ATAPI-4) Specification, T13/1153D Rev 18. The table Address column denotes the CY7C67300
register address for the corresponding ATA/ATAPI register. The IDE_nCS[1:0] field defines the ATA interface CS addressing bits and
the IDE_A[2:0] field define the ATA interface address bits. The combination of IDE_nCS and IDE_A are the ATA interface register
address.
register address for the corresponding ATA/ATAPI register. The IDE_nCS[1:0] field defines the ATA interface CS addressing bits and
the IDE_A[2:0] field define the ATA interface address bits. The combination of IDE_nCS and IDE_A are the ATA interface register
address.
HSS Registers
There are eight registers dedicated to HSS operation. Each of these registers are covered in this section and summarized in
.
Table 88. IDE PIO Port Registers
Address
ATA/ATAPI Register
IDE_nCS[1:0]
IDE_A[2:0]
0xC050
DATA Register
‘10’
‘000’
0xC052
Read: Error Register
Write: Feature Register
‘10’
‘001’
0xC054
Sector Count Register
‘10’
‘010’
0xC056
Sector Number Register
‘10’
‘011’
0xC058
Cylinder Low Register
‘10’
‘100’
0xC05A
Cylinder High Register
‘10’
‘101’
0xC05C
Device/Head Register
‘10’
‘110’
0xC05E
Read: Status Register
Write: Command Register
‘10’
‘111’
0xC060
Not Defined
‘01’
‘000’
0xC062
Not Defined
‘01’
‘001’
0xC064
Not Defined
‘01’
‘010’
0xC066
Not Defined
‘01’
‘011’
0xC068
Not Defined
‘01’
‘100’
0xC06A
Not Defined
‘01’
‘101’
0xC06C
Read: Alternate Status Register
Write: Device Control Register
‘01’
‘110’
0xC06E
Not Defined
‘01’
‘111’
Table 89. HSS Registers
Register Name
Address
R/W
HSS Control Register
0xC070
R/W
HSS Baud Rate Register
0xC072
R/W
HSS Transmit Gap Register
0xC074
R/W
HSS Data Register
0xC076
R/W
HSS Receive Address Register
0xC078
R/W
HSS Receive Length Register
0xC07A
R/W
HSS Transmit Address Register
0xC07C
R/W
HSS Transmit Length Register
0xC07E
R/W