EM78P468NBQ EMC [ELAN Microelectronics Corp], EM78P468NBQ Datasheet - Page 31

• Manufacturer Part Number: EM78P468NBQ
• Description: 8-BIT Microcontroller
• Manufacturer: EMC [ELAN Microelectronics Corp]

Product Specification (V1.2) 03.15.2005
(This specification is subject to change without further notice)
Idle mode operation, a WDT time-out (if enabled) will cause the device to reset. The
WDT can be enabled or disabled at any time during the Normal mode and Green mode
by software programming. Refer to WDTE bit of IOC81 register. The WDT time-out
period is equal to (pre-scaler*256/ (Fs/2)).
WDTE (IOC81)
TCC
Pin
Instruction Clock = Fosc /2
Fosc: CPU operate frequency
TE (IOC71)
WDT
WDT Time out
8 bit counter
8 to 1 MUX
Fig. 7(b) Block Diagram of WDT
Fig. 7(a) Block Diagram of TCC
TS (IOC71)
MUX
(IOC71)
PSRE
Prescaler
WDTP2~0
Prescaler
(IOC81)
TCCP2~0
(IOC71)
8-BIT Microcontroller
TCC overflow interrupt
(Fs:Sub oscillator)
Data Bus
EM78P468N
8 to 1 MUX
TCC (R1)
Fs/2
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