IC ENCORE MCU FLASH 2K 28SOIC

 

Z8F0213SJ005EC

Manufacturer Part NumberZ8F0213SJ005EC
DescriptionIC ENCORE MCU FLASH 2K 28SOIC
ManufacturerZilog
SeriesEncore!® XP®
Z8F0213SJ005EC datasheets

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Warranty: 60 days

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Specifications of Z8F0213SJ005EC

Core ProcessorZ8Core Size8-Bit
Speed5MHzConnectivityIrDA, UART/USART
PeripheralsBrown-out Detect/Reset, LED, POR, PWM, WDTNumber Of I /o24
Program Memory Size2KB (2K x 8)Program Memory TypeFLASH
Ram Size512 x 8Voltage - Supply (vcc/vdd)2.7 V ~ 3.6 V
Oscillator TypeInternalOperating Temperature-40°C ~ 105°C
Package / Case28-SOIC (7.5mm Width)Lead Free Status / RoHS StatusContains lead / RoHS non-compliant
Eeprom Size-Data Converters-
Other names269-3464  
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Page 99/247

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WDT Reset in NORMAL Operation
If configured to generate a Reset when a time-out occurs, the Watchdog Timer forces the
device into the System Reset state. The WDT status bit in the Watchdog Timer Control
register is set to 1. For more information on System Reset, see
Recovery
on page 21.
WDT Reset in STOP Mode
If configured to generate a Reset when a time-out occurs and the device is in STOP mode,
the Watchdog Timer initiates a Stop Mode Recovery. Both the WDT status bit and the
STOP bit in the Watchdog Timer Control register are set to 1 following WDT time-out in
STOP mode. For more information, see
Watchdog Timer Reload Unlock Sequence
Writing the unlock sequence to the Watchdog Timer Control Register (WDTCTL) address
unlocks the three Watchdog Timer Reload Byte Registers (WDTU, WDTH, and WDTL)
to allow changes to the time-out period. These write operations to the WDTCTL register
address produce no effect on the bits in the WDTCTL register. The locking mechanism
prevents spurious writes to the Reload registers. The following sequence is required to
unlock the Watchdog Timer Reload Byte Registers (WDTU, WDTH, and WDTL) for
write access.
1. Write
to the Watchdog Timer Control register (WDTCTL).
55H
2. Write
to the Watchdog Timer Control register (WDTCTL).
AAH
3. Write the Watchdog Timer Reload Upper Byte register (WDTU).
4. Write the Watchdog Timer Reload High Byte register (WDTH).
5. Write the Watchdog Timer Reload Low Byte register (WDTL).
All three Watchdog Timer Reload registers must be written in the order just listed. There
must be no other register writes between each of these operations. If a register write
occurs, the lock state machine resets and no further writes can occur unless the sequence is
restarted. The value in the Watchdog Timer Reload registers is loaded into the counter
when the Watchdog Timer is first enabled and every time a
Watchdog Timer Control Register Definitions
Watchdog Timer Control Register
The Watchdog Timer Control (WDTCTL) register is a write-only control register. Writing
the
,
unlock sequence to the WDTCTL register address unlocks the three
55H
AAH
PS024314-0308
®
Z8 Encore! XP
Product Specification
Reset and Stop Mode
Reset and Stop Mode Recovery
on page 21.
instruction is executed.
WDT
F0823 Series
89
Watchdog Timer