MC97F2664
April 11, 2014 Ver. 1.4
239
14. On-chip Debug System
14.1 Overview
14.1.1 Description
On-chip debug system (OCD2) of MC97F2664 can be used for programming the non-volatile memories and on-
chip debugging. Detail descriptions for programming via the OCD2 interface can be found in the following chapter.
Figure 14.1 shows a block diagram of the OCD2 interface and the On-chip Debug system.
14.1.2 Feature
•
Two-wire external interface: 1-wire serial clock input, 1-wire bi-directional serial data bus
•
Debugger Access to:
−
All Internal Peripheral Units
−
Internal data RAM
−
Program Counter
−
Flash and Data EEPROM Memories
•
Extensive On-chip Debug Support for Break Conditions, Including
−
Break Instruction
−
Single Step Break
−
Program Memory Break Points on Single Address
−
Programming of Flash, EEPROM, Fuses, and Lock Bits through the two-wire Interface
−
On-chip Debugging Supported by Dr.Choice
®
•
Operating frequency
Supports the maximum frequency of the target MCU
Figure 14.1 Block Diagram of On-Chip Debug System
BDC
Format
converter
USB
CPU
Code memory
-
SRAM
-
Flash
-
EEPROM
Data memory
DBG Register
Peripheral
User I/O
Address bus
Internal data bus
DSDA
DSCL
Target MCU internal circuit
DBG
Control
RUNFLAG
Содержание MC97F2664
Страница 20: ...MC97F2664 20 April 11 2014 Ver 1 4 4 Package Diagram Figure 4 1 64 Pin LQFP 1010 Package...
Страница 21: ...MC97F2664 April 11 2014 Ver 1 4 21 Figure 4 2 64 Pin LQFP 1414 Package...
Страница 22: ...MC97F2664 22 April 11 2014 Ver 1 4 Figure 4 3 64 Pin QFN Package...
Страница 23: ...MC97F2664 April 11 2014 Ver 1 4 23 Figure 4 4 44 Pin MQFP 1010 Package...