Z80189 Datasheet, PDF (35/107 Pages) Zilog, Inc. – GENERAL-PURPOSE EMBEDDED CONTROLLERS

Zilog
PRELIMINARY
Z80189/Z8L189
GENERAL-PURPOSE EMBEDDED CONTROLLERS
Timing &
Ø
Clock
Generator
TOUT
TxS
RxS
CKS
16-Bit
Programmable
Reload Timers
(2)
Clocked
Serial I/O
Port
MMU
A19-A0
Bus State Control
CPU
DMACs
(2)
Interrupt
/DREQ1
/TEND0
Asynchronous
SCI
(Channel 0)
Asynchronous
SCI
(Channel 1)
D7-D0
TxA0
CKA0/ /DREQ0
RxA0
/RTS0
/CTS0
/DCD0
TxA1
RxA1
/CTS1
/CKA1
Figure 30. Z189 MPU Block Diagram
DS971890301
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