z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 175

• Manufacturer Part Number: z8f1601
• Description: Z8 Encore!? Microcontroller With Flash Memory And 10-bit A/d Converter
• Manufacturer: ZiLOG Semiconductor

Table 93. On-Chip Debugger Commands
PS017609-0803
Debug Command
Write Program Memory
Read Program Memory
Write Data Memory
Read Data Memory
Read Program Memory CRC
Reserved
Step Instruction
Stuff Instruction
Execute Instruction
Reserved
Write Watchpoint
Read Watchpoint
Reserved
In the following bulleted list of OCD Commands, data and commands sent from the host
to the On-Chip Debugger are identified by ’
the On-Chip Debugger back to the host is identified by ’
•
•
•
Read OCD Revision (00H)—The Read OCD Revision command is used to
determine the version of the On-Chip Debugger. If OCD commands are added,
removed, or changed, this revision number changes.
Read OCD Status Register (02H)—The Read OCD Status Register command is
used to read the OCDSTAT register.
Read Runtime Counter (03H)—The Runtime Counter is used to count Z8 Encore!
system clock cycles in between Breakpoints. The 16-bit Runtime Counter counts up
from
overwritten during the Write Memory, Read Memory, Write Register, Read Register,
Read Memory CRC, Step Instruction, Stuff Instruction, and Execute Instruction
commands.
DBG <-- 00H
DBG --> OCDREV[15:8] (Major revision number)
DBG --> OCDREV[7:0] (Minor revision number)
DBG <-- 02H
DBG --> OCDSTAT[7:0]
0000H
Command Byte
22H - FFH
13H - 1FH
and stops at the maximum count of
0AH
0DH
0BH
0CH
0EH
0FH
10H
12H
20H
21H
11H
Enabled when NOT
in Debug mode?
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
-
-
-
-
-
-
-
-
-
-
-
-
-
DBG <-- Command/Data
FFFFH
DBG --> Data
Read Protect Option Bit
. The Runtime Counter is
Disabled by
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Yes
-
-
-
-
-
-
On-Chip Debugger
’. Data sent from
’
Z8 Encore!
®
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