W83628AG Nuvoton Technology Corporation of America, W83628AG Datasheet - Page 27

• Manufacturer Part Number: W83628AG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83628AG

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Rad Hardened: No
• Lead Free Status / RoHS Status: Compliant

Address Offset:
Default Value:
Attribute:
The register is a read-only register and used to indicate that the ISA bridge configuration space
adheres to PCI local bus specification. It also indicates that ISA bridge is not a multifunction device.
Bit 7
Bit 6:0
Address Offset:
Default Value:
Attribute:
Bit 7
Bit 6
Bit 5:3
10.7
10.8
Multifunction Indicator.
Layout Code.
HEADT-HEAD TYPE REGISTER
0 = Not a multifunction device.
00h = PCI layout type.
IO_RCVR-IO RECOVERY REGISTER
0 = SYSCLK is equal to PCICLK divided by 4.
1 = SYSCLK is equal to PCICLK divided by 3.
0 = Disable bits 5:3 setting and use 3.5 SYSCLKs for 8 bit I/O recovery time.
1 = Enable bits 5:3 setting.
When bit 6=1, this 3-bit field defines the additional number of SYSCLKs added to
standard 3.5 SYSCLK recovery time for 8 bit I/O
000 =0 SYSCLK
001 =1 SYSCLK
010 =2 SYSCLKs
011 =3 SYSCLKs
100 =4 SYSCLKs
101 =5 SYSCLKs
110 =6 SYSCLKs
111 = 7 SYSCLKs
SYSCLK Divider.
8-bit I/O Recovery Enable
8-bit I/O RecoveryTimes.
0Eh
00h
Read Only
40h
4Dh
Read/Write
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W83628AG & W83629AG
Publication Release Date: January, 2008
Revision 1.2