Z8F0813HJ005EG Zilog, Z8F0813HJ005EG Datasheet - Page 164

• Manufacturer Part Number: Z8F0813HJ005EG
• Description: IC Z8 ENCORE MCU FLASH 8K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0813HJ005EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 269-4182; Z8F0813HJ005EG

On-Chip Debugger Control Register Definitions
PS025203-0405
OCD Control Register
•
•
•
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!
A reset and stop function can be achieved by writing
function can be achieved by writing
a run function can be implemented by writing
turns
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
DBG
DBG
Step Instruction (10H)—The Step Instruction command 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
Stuff Instruction (11H)—The Stuff Instruction command steps one assembly instruction
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 in-
structions 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.
DBG
DBG
Execute Instruction (12H)—The Execute Instruction command allows sending an en-
tire 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 Flash Read Protect Option bit is enabled, this command
reads and discards one byte.
DBG
DBG
FFFFH
←
→
→
←
←
←
←
←
®
0EH
CRC[15:8]
CRC[7:0]
10H
11H
opcode[7:0]
12H
1-5 byte opcode
Z8F0823 Series device.
for the CRC value. Unlike most other OCD Read commands, there is a delay
P R E L I M I N A R Y
41H
to this register. If the device is in DEBUG mode,
40H
to this register.
81H
BRK
Z8 Encore!
to this register. A reset and go
instruction. It can also reset the
Product Specification
®
Z8F0823 Series
On-Chip Debugger
147