Z89C6700ZEM Datasheet Z89C6700ZEM | P1-P3

Z89C6700ZEM

CP95TAD0504

CUSTOMER PROCUREMENT SPECIFICATION

CP95TAD0504 (11/95)

HARDWARE FEATURES

Z89C6700ZEM

ICEBOX

™

FAMILY Z8

IN-CIRCUIT EMULATOR –C67

■ Supported Devices

Package Emulation Programming

84-Pin PLCC Z89167 N/A

84-Pin PLCC Z89168 N/A

84-Pin PLCC Z89169 N/A

84-Pin PLCC Z89C67 N/A

84-Pin PLCC Z89C68 N/A

84-Pin PLCC Z89C69 N/A

■ Real-Time Emulation

■ ICEBOX Emulator Provides In-Circuit Program

Debug Emulation

■ Z8 GUI Emulator Software

■ Windows-Based User Interface

■ RS-232 Connector

■ ICE Pod Connector for Emulation

GENERAL DESCRIPTION

The Z89C6700ZEM is a member of Zilog's ICEBOX

product family of in-circuit emulators providing support for

the above listed Z8 microcontroller devices.

Zilog's in-circuit emulators are interactive, Window-

oriented development tools, providing a real-time

environment for emulation and debugging.

The emulator provides essential timing and I/O circuitry to

simplify user emulation of the prototype hardware and

software product.

Data entering, program debugging are performed by the

monitor ROM and the host package, which communicates

through RS-232C serial interface. The user program can

be downloaded directly from the host computer through

the RS-232C connector. User code may be executed

through debugging commands in the monitor.

The Z89C6700ZEM emulator can be connected to

a serial port (COM1, COM2, COM3, and COM4) of the host

computer and uses Graphical User Interface (GUI)

software.

SPECIFICATIONS

Power Requirements

+5.0 VDC @ 2.0A

Dimensions

Width: 6.25 in. (15.8 cm)

Length: 9.5 in. (24.1 cm)

Height: 2.5 in. (6.35 cm)

Serial Interface

RS-232C @ 9600, 19200 (default), 28800, or 57600

Baud

Operating Conditions

Operating Temperature: 20°C, ±10°C

Supply Voltage: +5.0 VDC, ± 5%

Max. Oscillator Freq.: 20.48 MHz

Max. DSP Internal Clock Oper. Freq.: 10 MHz

Max. Z8 Internal Clock Oper. Freq.: 10 MHz

Min. DSP Internal Clock Oper. Freq.: 1 MHz

Min. Z8 Internal Clock Oper. Freq.: 1 MHz

Z89C6700ZEM

CP95TAD0504

HOST COMPUTER

Minimum Requirements

IBM PC (or 100-percent compatible) 386-based

machine

33 MHz

4 MB RAM

VGA Video Adapter

Hard Disk Drive (1 MB free space)

3.5-inch, High-Density (HD) Floppy Disk Drive

RS-232C COM port

Mouse or Pointing Device

Microsoft Windows 3.1

The following changes to the Minimum Requirements are

recommended for increased performance:

486- or Pentium-based machine

66 MHz (or faster)

8 MB of RAM (or more)

SVGA Video Adapter

Color Monitor

Printer

KIT CONTENTS

Z89C67 Emulator

•Emulation Base Board includes:

CMOS Z86C9320PSC

8K x 8 EPROM (Programmed with Debug Monitor)

32K x 8 Static RAM

Three 64K x 4 Static RAM

RS-232C Interface

Reset Switch

•Z89C67 Emulation Daughterboard

Z86C5020GSE ICE Chip

Two 3K x 8 Static RAM

Two 100-Pin HP-16500 Logic Analysis System

Interface Connectors

Z89C0010GSC

80/80-Pin Target Connectors

Cables/Pods

Power Cable with Banana Plugs

DB25 RS-232C Cable

84-Pin PLCC Emulation Pod Cable

Host Software

GUI Emulator Software

ZASM Cross-Assembler/ MOBJ Object File Utilities

Miscellaneous

20-Pin DIP Jumper Block

Documentation

Emulator User Manual

Z8 Cross-Assembler User's Guide

Universal Object File Utilities (MOBJ)

Registration Card

LIMITATIONS

1. Changing drives in file download and load symbol

dialog boxes is not anticipated by the GUI. Typing in

the filename in a directory other than shown in “Path:”

will result in “File not found”. Changing the drive using

the mouse is the workaround.

2. The initial blue Zilog screen will be distorted by other

active windows. This only affects the appearance, not

functionality, of the GUI.

3. Switching ICEBOXes without quitting the GUI is not

supported.

4. The maximum symbols that can be loaded is 32768,

provided that there is enough system resource

(memory).

5. The ICEBOX breakpoint hardware does not distinguish

between instruction and data fetches. When a

breakpoint in the GUI is set, the breakpoint hardware

triggers when the addresses match for either code or

data fetches.

Example:

000C SRP #%0

000E LD R4, #%0016

0010 LD R5, @R4

0012 NOP

0013 JP %000C

0016 NOP

Setting the breakpoint at %0016 and click GO.

Result: The code will break and stop at %0012.

Note: This will not happen when Animate Mode is on

because the GUI is not using the hardware breakpoints

when in Animate Mode.

6. If the emulator is running a user code at full speed and

the port window is opened: Switching to another

application or minimizing the GUI (then restoring) will

result in the following ICEBOX Communications Error

message: “Emulator rejected command: target

program is executing.” This message may need to be

cleared several times (as many as seven) before the

GUI returns to normal operation.

Z89C6700ZEM

CP95TAD0504

Workaround: Always close the port window before

leaving the GUI.

7. Do not put breakpoint at address after Stop instruction.

This will cause program counter to continue at that

location after a Stop-Mode Recovery.

8. Breakpointing in interrupt service routine and single-

stepping pass the IRET statement will cause global

interrupts to be disabled.

9. Clicking on the HALT Button does not always Halt

ICEBOX execution.

10. Single-stepping into the HALT instruction will cause an

ICEBOX "Fatal Error".

11. Halting the program execution or breakpointing when

interrupts are enabled will globally disable interrupts.

If halting occurs, the program must be reset and

started from address %000c hex.

12. The C67 ICEBOX uses the Z86C50 ICE Chip; therefore,

emulation at more than 12 MHz requires that the

Expanded Register File (ERF) timing of the ICE Chip

be slowed down to SCLK x 2. This is accomplished by

loading value %01 to ICECON Register (Bank F,

Example:

PUSH RP

LD RP, #%0F

LD %A, #%01

POP RP

13. Due to the limitation in the Z86C50 ICE Chip, a software

workabound for the interrupt vector fetching must be

in place when configuring the emulator for ROMless

emulation.

ROM Emulation

The ROM emulation has the correct sequence for

vectored interrupts, shown as follows:

Push Program Counter (PC) lower byte on stack

Push PC upper byte on stack

Push FLAG on stack

Fetch the upper byte of vector

Fetch the lower byte of vector

Branch to service routine specified by vector

ROMless Emulation

ROMless emulation has the incorrect sequence for

vectored interrupts. This sequence is shown as follows:

Push PC lower byte on stack

Push PC upper byte on stack

Push FLAG on stack

Fetch the upper byte of vector

Write the upper byte of vector to high byte of PC

Fetch lower byte of vector according to the modified

Branch to service routine specified by vector

The following figures illustrate the vectored interrupt

operation for ROM and ROMless emulation,

respectively:

P1-P3 P4-P6

Z89C6700ZEM

Mfr. #:

Buy Z89C6700ZEM

Manufacturer:

ZiLOG

Description:

Emulators / Simulators Z89C67 Z8 EMULATOR

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