FW82801EB Intel, FW82801EB Datasheet - Page 335

• Manufacturer Part Number: FW82801EB
• Manufacturer: Intel

Specifications of FW82801EB

• Lead Free Status / RoHS Status: Not Compliant

9.1.26
9.1.27
Intel
®
82801EB ICH5 / 82801ER ICH5R Datasheet
COM_DEC—LPC I/F Communication Port Decode Ranges
Register (LPC I/F—D31:F0)
Offset Address:
Default Value:
Lockable:
LPCFDD_DEC—LPC I/F FDD and LPT Decode Ranges
Register (LPC I/F—D31:F0)
Offset Address:
Default Value:
Lockable:
Bit
6:4
2:0
Bit
7:5
3:2
1:0
7
3
4
Reserved
COMB Decode Range — R/W. This field determines which range to decode for the COMB Port.
000 = 3F8h – 3FFh (COM1)
001 = 2F8h – 2FFh (COM2)
010 = 220h – 227h
011 = 228h – 22Fh
100 = 238h – 23Fh
101 = 2E8h – 2EFh (COM4)
110 = 338h – 33Fh
111 = 3E8h – 3EFh (COM3)
Reserved
COMA Decode Range — R/W. This field determines which range to decode for the COMA Port.
000 = 3F8h – 3FFh (COM1)
001 = 2F8h – 2FFh (COM2)
010 = 220h – 227h
011 = 228h – 22Fh
100 = 238h – 23Fh
101 = 2E8h – 2EFh (COM4)
110 = 338h – 33Fh
111 = 3E8h – 3EFh (COM3)
Reserved
FDD Decode Range — R/W. Determines which range to decode for the FDD Port
0 = 3F0h – 3F5h, 3F7h (Primary)
1 = 370h – 2FFh (Secondary)
Reserved
LPT Decode Range — R/W. This field determines which range to decode for the LPTPort.
00 = 378h – 37Fh and 778h – 77Fh
01 = 278h – 27Fh (port 279h is read only) and 678h – 67Fh
10 = 3BCh –3BEh and 7BCh – 7BEh
11 = Reserved
E0h
00h
No
E1h
00h
No
Description
Description
LPC Interface Bridge Registers (D31:F0)
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
R/W
8 bit
Core
R/W
8 bit
Core
335