Z8F042AHJ020SG Zilog, Z8F042AHJ020SG Datasheet - Page 101

• Manufacturer Part Number: Z8F042AHJ020SG
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SG

• 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: 23
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4159; Z8F042AHJ020SG

PS022517-0508
Table 50. Watchdog Timer Reload High Byte Register (WDTH)
Table 51. Watchdog Timer Reload Low Byte Register (WDTL)
BITS
FIELD
RESET
R/W
ADDR
R/W*–Read returns the current WDT count value. Write sets the desired Reload Value.
BITS
FIELD
RESET
R/W
ADDR
R/W*–Read returns the current WDT count value. Write sets the desired Reload Value.
7
WDTH—WDT Reload High Byte
Middle byte, Bits[15:8], of the 24-bit WDT reload value.
7
WDTL—WDT Reload Low
Least significant byte (LSB), Bits[7:0], of the 24-bit WDT reload value.
6
6
5
5
4
4
WDTH
WDTL
FF2H
FF3H
R/W*
R/W*
1
1
3
3
Z8 Encore! XP
2
2
Product Specification
1
1
®
F0822 Series
Watchdog Timer
0
0
88