z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 320

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS022006-0207
On-Chip Debugger Commands
The hardware OCD supports several commands for controlling the device. In the
following list of commands, data sent from the host to the OCD is identified by
‘
Data
•
•
•
•
•
•
DBG <-- Data
Read Status Register — The Read Status register command returns the contents of the
Read Control Register — The Read Control register command returns the contents of
Read Registers — The Read registers command returns the contents of CPU registers
Read Revision — The Read Revision command returns the revision identifier.
OCDSTAT
the
Write Control Register — The Write Control register command writes data to the
OCDCTL
R15 through R0.
Write Registers — The Write registers command writes data to CPU registers R15
through R0.
’. Multiple bytes transmitted are represented with double arrows ‘<<‘or’>>’.
OCDCTL
DBG <-- 0000_0000
DBG --> RevID[15:8]
DBG --> RevID[7:0]
DBG --> CRC[0:7]
DBG <-- 0000_0001
DBG --> status[7:0]
DBG --> CRC[0:7]
DBG <-- 0000_0010
DBG --> OCDCTL[7:0]
DBG --> CRC[0:7]
DBG <-- 0000_0011
DBG <-- OCDCTL[7:0]
DBG --> CRC[0:7]
DBG <-- 0000_0100
DBG ->> regdata[31:24]
DBG ->> regdata[23:16]
DBG ->> regdata[15:8]
DBG ->> regdata[7:0]
DBG --> CRC[0:7]
DBG <-- 0000_0101
DBG <<- regdata[31:24]
DBG <<- regdata[23:16]
DBG <<- regdata[15:8]
DBG <<- regdata[7:0]
DBG --> CRC[0:7]
register.
register.
register.
’. Data sent from the OCD back to the host is identified by ‘
P R E L I M I N A R Y
Product Specification
ZNEO
On-Chip Debugger
™
Z16F Series
DBG -->
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