Specifications

PRELIMINARY
Élan™SC310 Microcontroller Data Sheet 5
TABLE OF CONTENTS
Distinctive Characteristics ............................................................................................................ 1
General Description ..................................................................................................................... 2
Customer Service ........................................................................................................................ 2
Block Diagram ............................................................................................................................. 3
Ordering Information .................................................................................................................... 4
Connection Diagram .................................................................................................................. 11
ÉlanSC310 Microcontroller Pin Designations ............................................................................ 12
Pin Designations (Sorted by Pin Number) ................................................................................. 13
Pin Designations (Sorted By Pin Name) .................................................................................... 15
Pin State Tables ........................................................................................................................ 21
Pin Characteristics ................................................................................................................ 21
Pin Descriptions ......................................................................................................................... 30
Memory Bus Interface................................................................................................................ 30
CAS1H
[SRCS3], CAS1L [SRCS2], CAS0H [SRCS1], CAS0L [SRCS0] ............................. 30
DOSCS
................................................................................................................................. 30
MA11–MA0/SA23–SA12....................................................................................................... 30
MWE
..................................................................................................................................... 30
RAS1
–RAS0 ......................................................................................................................... 30
ROMCS
................................................................................................................................. 30
System Interface ........................................................................................................................ 31
AEN [TDI].............................................................................................................................. 31
D15–D0................................................................................................................................. 31
DACK2
[TCK]........................................................................................................................ 31
DBUFOE
............................................................................................................................... 31
DRQ2 [TDO].......................................................................................................................... 31
ENDIRH ................................................................................................................................ 31
ENDIRL................................................................................................................................. 31
IOCHRDY.............................................................................................................................. 31
IOCS16
................................................................................................................................. 31
IOR
........................................................................................................................................ 31
IOW
....................................................................................................................................... 31
IRQ1, IRQ14 ......................................................................................................................... 32
MCS16
.................................................................................................................................. 32
MEMR
................................................................................................................................... 32
MEMW
.................................................................................................................................. 32
PIRQ0 (IRQ6), PIRQ1 (IRQ3)............................................................................................... 32
RSTDRV ............................................................................................................................... 32
SA11–SA0............................................................................................................................. 32
SBHE
.................................................................................................................................... 32
SPKR .................................................................................................................................... 32
TC [TMS]............................................................................................................................... 32
Keyboard Interface .................................................................................................................... 32
8042CS
[XTDAT] .................................................................................................................. 32
A20GATE.............................................................................................................................. 32
RC
......................................................................................................................................... 33
SYSCLK [XTCLK] ................................................................................................................. 33
Parallel Port Interface ................................................................................................................ 33
ACK
........................................................................................................................................ 33
AFDT
[X14OUT].................................................................................................................... 33
BUSY .................................................................................................................................... 33
ERROR
................................................................................................................................. 33
INIT
....................................................................................................................................... 33
PE ......................................................................................................................................... 33