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--Preliminary, Confidential, Proprietary--
Acer Laboratories Inc.
M512x : Mega I/O Controller with PnP
Page 4
07-02-1997 Document Number: 512xDS02.doc
Acer Labs: 7F, 115 Tung Hsing Street, Taipei 110, Taiwan, ROC Tel: 886-(02) 762-8800
Fax: 762-6060
RDATAJ
WGATEJ
WDATAJ
HDSELJ
DIRJ
STEPJ
DSKCHGJ
DRV0-1
PDIR
MOT0-1
WPJ
TRK0J
DENSEL
INDEXJ
ALi
M512x
ISA Bus
interface
Floppy
disk
interface
Serial port 1
Serial port 2
KBC
RTC
Printer port
interface
SD0-SD7
IORJ
IOWJ
AEN
SA0-SA15
DACK0J-DACK3J
DRQ0-DRQ3
TC
IRQ1,IRQ3-12,IRQ14-15
MR
SIN1, SOUT1
RTS1J
DTR1J
CTS1J
DSR1J
DCD1J
RI1J
SIN2,SOUT2
RTS2J
DTR2J
CTS2J
DSR2J
DCD2J
RI2J
AUTOFDJ
INITJ
SLCTINJ
STROBEJ
BUSY
ACKJ
PE
SLCT
ERRORJ
IOCHRDY
PD0-PD7
XTAL1,2
VBAT
PWG
KDAT,KCLK
MDAT,MCLK
BIOS
Buffer
Common
I/O
ROMOEJ
ROMCSJ
RD0-7
CIO 10-17,20-25,30-34
Figure 1-1
M512x Block Diagram