Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 166

• Manufacturer Part Number: Z8F011ASH020EG2156
• Description: 8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F011ASH020EG2156

• Rohs: yes
• Core: eZ8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 1 KB
• Data Ram Size: 256 B
• On-chip Adc: No
• Package / Case: SOIC-20
• Mounting Style: SMD/SMT
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

PS025113-1212
On-Chip Debugger Control Register Definitions
OCD Control Register
ory size and is approximately equal to the system clock period multiplied by the number of
bytes in program memory.
Step Instruction (10H).
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.
Stuff Instruction (11H).
and allows specification of the first byte of the instruction. The remaining 0–4 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 breakpoint. If
the device is not in DEBUG Mode or the Flash read protect option bit is enabled, the OCD
ignores this command.
Execute Instruction (12H).
instruction to be executed to the eZ8 CPU. This command can also step over breakpoints.
The number of bytes to send for the instruction depends on the opcode. If the device is not
in DEBUG Mode or the Flash read protect option bit is enabled, this command reads and
discards one byte.
This section describes the features of the On-Chip Debugger Control and Status registers.
The OCD Control Register controls the state of the On-Chip Debugger. This register is
used to enter or exit DEBUG Mode and to enable the
Z8 Encore! F0830 Series device.
A reset and stop function can be achieved by writing
function can be achieved by writing
a run function can be implemented by writing
DBG
DBG
DBG
DBG
DBG
DBG
DBG
DBG
←
→
→
←
←
←
←
←
0EH
10H
11H
opcode[7:0]
12H
1–5 byte opcode
CRC[15:8]
CRC[7:0]
The step instruction command, steps one assembly instruction at
The stuff instruction command, steps one assembly instruction
The execute instruction command allows sending an entire
41H
to this register. If the device is in DEBUG Mode,
On-Chip Debugger Control Register Definitions
40H
to this register.
81H
BRK
to this register. A reset and go
instruction. It can also reset the
Z8 Encore!
Product Specification
®
F0830 Series
148