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| Z8F0113HJ005EG Datasheet, PDF (180/245 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers | |||
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Z8 Encore! XP® F0823 Series
Product Specification
165
DBG â 0BHï
DBG â Program Memory Address[15:8]ï
DBG â Program Memory Address[7:0]ï
DBG â Size[15:8]ï
DBG â Size[7:0]ï
DBG â 1â65536 data bytes
Write Data Memory (0CH). The Write Data Memory command writes data to Data Mem-
ory. This command is equivalent to the LDE and LDEI instructions. Data can be written 1â
65536 bytes at a time (65536 bytes can be written by setting size to 0). If the device is not
in DEBUG Mode or if the Flash Read Protect Option Bit is enabled, the data is discarded.
DBG â 0CHï
DBG â Data Memory Address[15:8]ï
DBG â Data Memory Address[7:0]ï
DBG â Size[15:8]ï
DBG â Size[7:0]ï
DBG â 1â65536 data bytes
Read Data Memory (0DH). The Read Data Memory command reads from Data Memory.
This command is equivalent to the LDE and LDEI instructions. Data can be read 1 to
65536 bytes at a time (65536 bytes can be read by setting size to 0). If the device is not in
DEBUG Mode, this command returns FFH for the data.
DBG â 0DHï
DBG â Data Memory Address[15:8]ï
DBG â Data Memory Address[7:0]ï
DBG â Size[15:8]ï
DBG â Size[7:0]ï
DBG â 1â65536 data bytes
Read Program Memory CRC (0EH). The Read Program Memory Cyclic Redundancy
Check (CRC) command computes and returns the CRC of Program Memory using the 16-
bit CRC-CCITT polynomial. If the device is not in DEBUG Mode, this command returns
FFFFH for the CRC value. Unlike most other OCD Read commands, there is a delay from
issuing of the command until the OCD returns the data. The OCD reads the Program
Memory, calculates the CRC value, and returns the result. The delay is a function of the
Program Memory size and is approximately equal to the system clock period multiplied by
the number of bytes in the Program Memory.
DBG â 0EHï
DBG â CRC[15:8]ï
DBG â CRC[7:0]
Step Instruction (10H). The Step Instruction steps one assembly instruction at the current
Program Counter (PC) location. If the device is not in DEBUG Mode or the Flash Read
Protect Option bit is enabled, the OCD ignores this command.
DBG â 10H
PS024315-1011
PRELIMINARY
On-Chip Debugger Commands
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