SH7144 Datasheet, PDF(651/773 Page) Renesas Technology Corp – Hitachi SuperH RISC engine

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SH7144 Datasheet, PDF (651/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

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Section 23 Advanced User Debugger (AUD)

23.1 Overview

This LSI has an on-chip advanced user debugger (AUD). Use of the AUD simplifies the

construction of a simple emulator, with functions such as acquisition of branch trace data and

monitoring/tuning of on-chip RAM data.

AUD can be enabled or disabled using the AUDSRST bit in the system control register (SYSCR).

Refer to section 24.2.2, System Control Register (SYSCR), for SYSCR.

23.1.1 Features

The AUD has the following features:

â¢ Eight input/output pins

ï£§ Data bus (AUDATA3-AUDATA0)

ï£§ AUD reset (AUDRST)

ï£§ AUD sync signal (AUDSYNC)

ï£§ AUD clock (AUDCK)

ï£§ AUD mode (AUDMD)

â¢ Two modes

ï£§ Branch trace mode

ï£§ RAM monitor mode

AUD0001A_010020020700

Rev. 2.0, 09/02, page 611 of 732

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