Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 192

• Manufacturer Part Number: Z8F042AHH020EG
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4156; Z8F042AHH020EG

PS022517-0508
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Read OCD Control Register (05H)
reads the value of the OCDCTL register.
Write Program Counter (06H)
data that follows to the eZ8 CPU’s Program Counter. If the device is not in DEBUG
mode or if the Read Protect Option Bit is enabled, the Program Counter values are
discarded.
Read Program Counter (07H)
value in the eZ8 CPU’s Program Counter. If the device is not in DEBUG mode or if
the Read Protect Option Bit is enabled, this command returns
Write Register (08H)
Data can be written 1-256 bytes at a time (256 bytes can be written by setting size to
zero). If the device is not in DEBUG mode, the address and data values are discarded.
If the Read Protect Option Bit is enabled, then only writes to the Flash Control
Registers are allowed and all other register write data values are discarded.
Read Register (09H)
File. Data can be read 1-256 bytes at a time (256 bytes can be read by setting size to
zero). Reading peripheral control registers through the OCD does not effect peripheral
operation. For example, register bits that are normally cleared upon a read operation
will not be effected (WDTSTAT register is affected by OCD read register operation).
If the device is not in DEBUG mode or if the Read Protect Option Bit is enabled, this
command returns
DBG ← 04H
DBG ← OCDCTL[7:0]
DBG ← 05H
DBG → OCDCTL[7:0]
DBG ← 06H
DBG ← ProgramCounter[15:8]
DBG ← ProgramCounter[7:0]
DBG ← 07H
DBG → ProgramCounter[15:8]
DBG → ProgramCounter[7:0]
DBG ← 08H
DBG ← {4’h0,Register Address[11:8]}
DBG ← Register Address[7:0]
DBG ← Size[7:0]
DBG ← 1-256 data bytes
DBG ← 09H
DBG ← {4’h0,Register Address[11:8]
DBG ← Register Address[7:0]
DBG ← Size[7:0]
DBG → 1-256 data bytes
FFH
—The Write Register command writes data to the Register File.
—The Read Register command reads data from the Register
for all the data values.
—The Read Program Counter command reads the
—The Write Program Counter command writes the
—The Read OCD Control Register command
Z8 Encore! XP
Product Specification
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On-Chip Debugger
F0822 Series
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