z80180 ZiLOG Semiconductor, z80180 Datasheet - Page 8

• Manufacturer Part Number: z80180
• Description: Microprocessor Unit
• Manufacturer: ZiLOG Semiconductor

PS014004-1106
Note:
channels. Also included on-chip are wait-state generators, a clock oscillator, and an interrupt
controller.
The Z80180
Power connections follow conventional descriptions as listed in
Table 1. Power Connection Conventions
Power Controller
All signals with an overline are active Low. For example, B/W, in which WORD is
active Low); and B/W, in which BYTE is active Low.
Connection
Power
Ground
Processor
16-Bit Programmable
™
Reload Timers (2)
Figure 1. Z80180 Functional Block Diagram
is housed in 80-pin QFP, 68-pin PLCC, and 64-pin DIP packages.
Address Bus
Circuit
V
GND
Data Bus
CC
8-Bit
16-Bit
DMACs (2)
Serial I/O
Clocked
MMU
V
Device
V
UARTs (2)
DD
SS
Table
Decode
Microprocessor Unit
1.
TXA1–0
RXA1–0
B
A
B
Overview
Z80180
2