Z8F042AHJ020SC00TR Zilog, Z8F042AHJ020SC00TR Datasheet - Page 106

• Manufacturer Part Number: Z8F042AHJ020SC00TR
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SC00TR

• 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: Contains lead / RoHS non-compliant
• Other names: Z8F042AHJ020SC00T

Table 59. Watchdog Timer Reload High Byte Register (WDTH)
Table 60. Watchdog Timer Reload Low Byte Register (WDTL)
PS022825-0908
BITS
FIELD
RESET
R/W
ADDR
R/W* - Read returns the current WDT count value. Write sets the appropriate Reload Value.
BITS
FIELD
RESET
R/W
ADDR
R/W* - Read returns the current WDT count value. Write sets the appropriate Reload Value.
Table 58. Watchdog Timer Reload Upper Byte Register (WDTU)
BITS
FIELD
RESET
R/W
ADDR
R/W* - Read returns the current WDT count value. Write sets the appropriate Reload Value.
Caution:
7
7
WDTU—WDT Reload Upper Byte
Most-significant byte (MSB), Bits[23:16], of the 24-bit WDT reload value.
WDTH—WDT Reload High Byte
Middle byte, Bits[15:8], of the 24-bit WDT reload value.
WDTL—WDT Reload Low
Least significant byte (LSB), Bits[7:0], of the 24-bit WDT reload value.
7
The 24-bit WDT Reload Value must not be set to a value less than
6
6
6
5
5
5
4
4
4
WDTU
WDTH
WDTL
FF1H
FF2H
FF3H
R/W*
R/W*
R/W*
00H
04H
00H
3
3
3
Z8 Encore! XP
2
2
2
Product Specification
000004H
1
1
1
®
F082A Series
Watchdog Timer
.
0
0
0
95