EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 305

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

ZiLOG Debug Interface
PS019209-0504
Introduction
The ZiLOG Debug Interface (ZDI) provides a built-in debugging interface to the
CPU. ZDI provides basic in-circuit emulation features including:
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The above features are built into the silicon. Control is provided via a two-wire
interface that is connected to the ZPAK II emulator. Figure 51 illustrates a typical
setup using a a target board, ZPAK II, and the host PC running ZiLOG Developer
Studio II. Refer to the
Figure 51. Typical ZDI Debug Setup
ZDI allows reading and writing of most internal registers without disturbing the
state of the machine. Reads and Writes to memory can occur as fast as the ZDI
Developer
Examining and modifying internal registers
Examining and modifying memory
Starting and stopping the user program
Setting program and data break points
Single-stepping the user program
Executing user-supplied instructions
Debugging the final product with the inclusion of one small connector
Downloading code into SRAM
C source-level debugging using ZiLOG Developer Studio II (ZDS II)
ZiLOG
Studio
ZiLOG website
Emulator
P R E L I M I N A R Y
ZPAK
for more information on ZPAK II and ZDS II.
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Target Board
Product Specification
Product
eZ80
ZiLOG Debug Interface
eZ80F91 MCU
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