ELAN Home Systems EM78P458 - Manual (Page 29)

EM78P458/459
OTP ROM
Table 5 The Values of RST, T, and P after RESET
Reset Type T P
Power-on 1 1
/RESET during Operating mode *P *P
/RESET wake-up during SLEEP mode 1 0
WDT during Operating mode 0 *P
WDT wake-up during SLEEP mode 0 0
Wake-up on pin change during SLEEP mode 1 0
*P: Previous status before reset
Table 6 The Status of RST, T and P being Affected by Events
Event T P
Power-on 1 1
WDTC instruction 1 1
WDT time-out 0 *P
SLEP instruction 1 0
Wake-up on pin changed during SLEEP mode 1 0
*P: Previous value before reset
WDT Timeout
Oscillator
D Q
CLK
CLR
WDT
VDD
Setup time
Reset
CLK
/RESET
Power-On Reset
Voltage Detector
W
Fig. 10 Block Diagram of Reset of Controller
This specification is subject to change without prior notice. 07.01.2003 (V1.3) 29