gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 32

• Manufacturer Part Number: gc80c521a
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

PFI Pulse
POR reset
6.7. LVD (Low Voltage Detector)
On-chip power-on reset
On-chip power-fail reset
Optional power-fail interrupt : 2.2V
Flag Transition
- POF is a mirror of POR.
5.0
1.6
2.2
0
D
A
B
C
1.6V
A
2.2V
B
X
X
POF
1
X
1
1
: 1.6V
: 1.6V
X
X
POR
1
X
1
1
C
2.2V
X
X
1.6V
PFI
D
X
1
1
1
TIME
EXIF (91h) : External Interrupt Flag Register
PCON (87h) : Power Control Register
WDCON (D8h) : Watchdog & Power Status Register
WDMOD
R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(1) R/W(0) R/W(1)
SMOD1 SMOD0
R/W(0) R/W(0)
R/W(0) R/W(1) R/W(0) R/W(1) R/W(0) R/W(0) R/W(0) R/W(0)
IE5
BGS :
POF
PD
POR :
EPFI :
PFI
LVD_OFF
PFI Pulse
PD
:
:
:
POR
IE4
LVD
PFI
Band-gap Select
0 = LVD Block Off / 1 = LVD Block ON
Power-off Flag
Power-down mode bit
Power-on Reset Flag
Enable Power-fail Interrupt
Power-Fail interrupt Flag (always 1 @ 3V operation)
BGS
EPFI
IE3
-
MiDAS1.0B Family
POR Pulse
R/W(1) R/W(0) R/W(0) R/W(0) R/W(0)
POF
IE2
PFI
EPFI
XT/RG
WDIF
GF1
POR
POF
RGMD
WTRF
GF0
RGSL
EWT
PD
POR Reset
PFI interrupt
RWT
BGS
IDL
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