z8fmc16100 ZiLOG Semiconductor, z8fmc16100 Datasheet - Page 262

• Manufacturer Part Number: z8fmc16100
• Description: Z8 Encore Motor Control Flash Mcus
• Manufacturer: ZiLOG Semiconductor

PS024611-0408
OCD Control Register
Step Instruction—
current Program Counter location. If the device is not in DEBUG mode or the Read
Protect option bit is enabled, the OCD ignores this command.
DBG
Stuff Instruction—
allows specification of the first byte of the instruction. The remaining 0 to 4 bytes of the
instruction are read from Program Memory. This command is useful for stepping over
instructions where the first byte of the instruction has been overwritten by a break point. If
the device is not in DEBUG mode or the Read Protect option bit is enabled, the OCD
ignores this command.
DBG
DBG
Execute Instruction—
instruction to be executed to the eZ8 CPU. This command can also step over break points.
The number of bytes to send for the instruction depends on the Opcode. If the device is not
in DEBUG mode or the Read Protect option bit is enabled, the OCD ignores this command.
DBG
DBG
Read Baud Reload Register—
current value in the Baud Reload register.
DBG
DBG
DBG
The OCD Control register (see
debugger. This register enters or exits DEBUG mode and enables the BRK instruction. It
can also reset the Z8FMC16100 Series Flash MCU.
A reset and stop function can be achieved by writing
function is achieved by writing
function is implemented by writing
A more detailed description of each bit follows
←
←
←
←
←
←
→
→
10h
11h
opcode[7:0]
12h
1-5 byte opcode
1Bh
BAUD[15:8]
BAUD[7:0]
The Step Instruction command steps one assembly instruction at the
The Stuff Instruction command steps one assembly instruction and
The Execute Instruction command allows sending an entire
41H
The Read Baud Reload register command returns the
Table 135
40h
to this register. If the device is in DEBUG mode, a run
to this register.
on page 251) controls the state of the on-chip
Table
Z8FMC16100 Series Flash MCU
135.
81H
to this register. A reset and go
Product Specification
OCD Control Register
250