CY7C67300

IDE PIO Port Registers [0xC050 - 0xC06F] [R/W]

All IDE PIO Port registers [0xC050 - 0xC06F] in Table 88 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.

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

‘10’

‘001’

 

Write: Feature Register

 

 

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

‘10’

‘111’

 

Write: Command Register

 

 

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

‘01’

‘110’

 

Write: Device Control Register

 

 

0xC06E

Not Defined

‘01’

‘111’

 

 

 

 

HSS Registers

There are eight registers dedicated to HSS operation. Each of these registers are covered in this section and summarized in Table 89.

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

 

 

 

Document #: 38-08015 Rev. *J

Page 55 of 99

[+] Feedback

Page 55
Image 55
Cypress CY7C67300 manual IDE PIO Port Registers 0xC050 0xC06F R/W, HSS Registers Register Name Address