82371AB Datasheet, PDF (214/284 Pages) Intel Corporation – PCI-TO-ISA / IDE XCELERATOR PIIX4

82371AB (PIIX4)
E
Table 33. Peripheral Device Overview
Device Access
Reload
Peripheral Device
Access Address
DACK#
GPI Idle Timer Global Fast Slow
Count Standby Burst Burst
6. Serial A
(Modem)
3F8h–3FFh COM1
2F8h–2FFh COM2
220h–227h
228h–22Fh
238h–23Fh
2E8h–2EFh COM4
338h–33Fh
3E8h–3EFh COM3
GPI15 CNT-B
x
x
7. Serial B (IR)
3F8h–3FFh COM1
2F8h–2FFh COM2
220h–227h
228h–22Fh
238h–23Fh
2E8h–2EFh COM4
338h–33Fh
3E8h–3EFh COM3
GPI16 CNT-B
x
x
8. LPT
LPT_DEC_SEL:3
0,0=3BCh–3BFh,
7BCh–7BEh,
0,1=378h–37Fh,
778h–77Ah,
1,0=278h–27Fh,
678h–67Ah,
one of:
DACK[x]#
0,1,3
GPI17 BM_CNT x
x
(8.) Bus Master
Activity
PCIREQ[A:D]#,
PHOLD#
Dev8
x
x
Timer
9. Generic I/O
Range 0
16-byte I/O range
GPI4 CNT-C
x
x
10. Generic I/O
Range 1
16-byte I/O range
GPI18 CNT-C
x
x
11. User Interface
Graphics
Keyboard
Mouse
PCI Utilization
1M to 8M Mem range
A0000h–BFFFFh
3B0h–3DFh VGA
60h, 64h
IRQ0, IRQ12/M
GPI19 CNT-D
x
x
12. CARDBUS 0
16-byte I/O range
32-KB–4-MB Mem
range
GPI20
x
x
13. CARDBUS 1
16-byte I/O range
32-KB–4-MB Mem
range
GPI21
x
x
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