Z80189 Datasheet, PDF (104/107 Pages) Zilog, Inc. – GENERAL-PURPOSE EMBEDDED CONTROLLERS

Zilog
PRELIMINARY
ELECTRICAL CHARACTERISTICS (Continued)
Z80189/Z8L189
GENERAL-PURPOSE EMBEDDED CONTROLLERS
Input
Type
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
R
R
I
I
I
Output
Type
3
3
3
3
TS
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
T
3
3
3
3
DEFAULT
FUNCTION
HA8
/IOCS1
HA7
HA6
HAEN
HINTR2
/HRD
/HWR
/HDDIS
HA0
HA1
HA2
/HCS
/HALT
HA3
/IORQ
/MREQ
/IOCS2
/M1
/WR
/RD
PHI
XTAL
EXTAL
HA4
HDRQ1
/HDACK1
/RESET
/NMI
/INTO
/INT1
/INT2
SECONDARY
FUNCTION
IEO
IEI
/DCD0
/CTS0
TXA0
RXA0
HC1
/RFSH
MRD
E
/WAIT
/BUSACK
/BUSREQ
PC6
PC7
104
DS971890301