ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 243

• Manufacturer Part Number: ez80f91
• Description: Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
• Manufacturer: ZiLOG Semiconductor

Zilog Debug Interface
PS027001-0707
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.
target board, ZPAK II, and the host PC running Zilog Developer Studio II. For more infor-
mation on ZPAK II and ZDS II, refer to www.zilog.com.
ZDI allows reading and writing of most internal registers without disturbing the state of
the machine. Reads and Writes to memory occurs as fast as the ZDI downloads and
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
Figure 48. Typical ZDI Debug Setup
Emulator
ZPAK
Figure 48
illustrates a typical setup using a a
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Target Board
Product Specification
Product
eZ80
Zilog Debug Interface
eZ80F91 ASSP
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