82374EB Datasheet, PDF (5/208 Pages) Intel Corporation – SYSTEM COMPONENT (ESC)

CONTENTS
PAGE
3 1 6 CLKDIV EISA CLOCK DIVISOR REGISTER
40
3 1 7 PCSA PERIPHERAL CHIP SELECT A REGISTER
41
3 1 8 PCSB PERIPHERAL CHIP SELECT B REGISTER
42
3 1 9 EISAID 4 1 EISA ID REGISTERS
43
3 1 10 SGRBA SCATTER GATHER RELOCATE BASE ADDRESS REGISTER
43
3 1 11 APICBASE APIC BASE ADDRESS RELOCATION
44
3 1 12 PIRQ 0 3 PIRQ ROUTE CONTROL REGISTERS
44
3 1 13 GPCSLA 2 0 GENERAL PURPOSE CHIP SELECT LOW ADDRESS
REGISTER
45
3 1 14 GPCSHA 2 0 GENERAL PURPOSE CHIP SELECT HIGH ADDRESS
REGISTER
45
3 1 15 GPCSM 2 0 GENERAL PURPOSE CHIP SELECT MASK REGISTER
46
3 1 16 GPXBC GENERAL PURPOSE PERIPHERAL X-BUS CONTROL REGISTER 46
3 1 17 PAC PCI APIC CONTROL REGISTER
47
3 1 18 TESTC TEST CONTROL REGISTER
47
3 1 19 SMICNTL SMI CONTROL REGISTER
47
3 1 20 SMIEN SMI ENABLE REGISTER
48
3 1 21 SEE SYSTEM EVENT ENABLE REGISTER
49
3 1 22 FTMR FAST OFF TIMER REGISTER
50
3 1 23 SMIREQ SMI REQUEST REGISTER
50
3 1 24 CTLTMR CLOCK SCALE STPCLK LOW TIMER
52
3 1 25 CTLTMRH CLOCK SCALE STPCLK HIGH TIMER
52
3 2 DMA Register Description
52
3 2 1 DCOM COMMAND REGISTER
52
3 2 2 DCM DMA CHANNEL MODE REGISTER
54
3 2 3 DCEM DMA CHANNEL EXTENDED MODE REGISTER
55
3 2 4 DR DMA REQUEST REGISTER
58
3 2 5 MASK REGISTER WRITE SINGLE MASK BIT
58
3 2 6 WAMB WRITE ALL MASK BITS REGISTER
59
3 2 7 DS DMA STATUS REGISTER
60
3 2 8 DB CA DMA BASE AND CURRENT ADDRESS REGISTER (8237
COMPATIBLE SEGMENT)
61
3 2 9 DB CBW DMA BASE AND CURRENT BYTE WORD COUNT REGISTER
(8237 COMPATIBLE SEGMENT)
62
3 2 10 DMA BASE AND CURRENT HIGH BYTE WORD COUNT REGISTER DMA
BASE HIGH BYTE WORD COUNT REGISTER
63
3 2 11 DMA MEMORY LOW PAGE REGISTER DMA MEMORY BASE LOW PAGE
REGISTER
64
3 2 12 DMAP DMA PAGE REGISTER
64
5