Z86C92 查看數據表（PDF） - Zilog

零件编号

产品描述 (功能)

生产厂家

Z86C92

IR MICROCONTROLLER

Zilog 

Z86C72/C92/L72/L92

IR Microcontroller

GENERAL DESCRIPTION (Continued)

access to register mapped peripherals, I/O circuits, and

powerful counter/timer circuitry. The Z86C72/C92/L72/L92

offers a flexible I/O scheme, an efficient register and ad-

dress space structure, and a number of ancillary features

that are useful in many consumer, automotive, computer

peripheral, and battery operated hand-held applications.

Many applications demand powerful I/O capabilities. The

Z86LX2/CX2 family fulfills this with three package options

in which the L72 version provides 31 pins of dedicated in-

put and output. These lines are grouped into four ports.

Each port consists of eight lines (Port 3 has seven lines)

and is configurable under software control to provide tim-

ing, status signals, parallel I/O with or without handshake,

and an address/data bus for interfacing external memory.

There are five basic address spaces available to support a

wide range of configurations: Program Memory, Register

Zilog

File, Expanded Register File, Extended Data RAM and Ex-

ternal Memory. The register file is composed of 256 bytes

of RAM. It includes four I/O port registers, 16 control and

status registers and the rest are General-Purpose regis-

ters. The Extended Data RAM adds 512 bytes of usable

general-purpose registers. The Expanded Register FIle

consists of two additional register groups (F and D).

To unburden the program from coping with such real-time

problems as generating complex waveforms or receiving

and demodulating complex waveform/pulses, the

Z86LX2/CX2 family offers a new intelligent counter/timer

architecture with 8-bit and 16-bit counter/timers (Figure 1).

Also included are a large number of user-selectable

modes, and two on-board comparators to process analog

signals with separate reference voltages (Figure 2).

HI16

8

LO16

8

1 24 8

SCLK Clock

Divider

Input Glitch

Filter

Edge

Detect

Circuit

16-Bit

T16

8

TC16H

16

8

TC16L

HI8

8

LO8

8

8-Bit

T8

8

TC8H

8

TC8L

And/Or

Logic

Figure 1. Counter/Timer Block Diagram

Timer 16

Timer 8/16

Timer 8

6-2

PRELIMINARY

DS97LVO0900

Share Link: