gc80c520g CORERIVER Semiconductor, gc80c520g Datasheet - Page 25

• Manufacturer Part Number: gc80c520g
• Description: Eprom / Rom / Romless Based 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

POR Pulse
PFI Pulse
6.7. LVD (Low Voltage Detector)
On-chip power-on reset
On-chip power-fail reset
Optional power-fail interrupt : 4.0V
Flag Transition
- POF is a mirror of POR.
5.0
4.0
2.5
0
A
B
C
D
A
2.5V
B
X
X
SLOPE_R
POF
4.0V
1
X
1
1
: 2.5V
: 2.5V
X
X
POR
1
X
1
1
4.0V
C
X
X
PFI
SLOPE_F
X
1
2.5V
D
1
1
TIME
EXIF (91h) : External Interrupt Flag Register
PCON (87h) : Power Control Register
WDCON (D8h) : Watchdog & Power Status Register
R/W(0) R/W(0) R/W(0) R/W(0)
SMOD1 SMOD0
R/W(0) R/W(0)
IE5
-
BGS :
POF
PD
POR :
EPFI :
PFI
LVD_OFF
PFI Pulse
R/W(1) R/W(0) R/W(1) R/W(0) R/W(0) R/W(0) R/W(0)
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
-
POR Pulse
MiDAS1.0 Family
R/W(1) R/W(0) R/W(0) R/W(0) R/W(0)
POF
IE2
PFI
EPFI
WDIF
R(1)
GF1
XT
POR
POF
WTRF
GF0
-
EWT
PD
POR Reset
PFI interrupt
-
R/W(1)
RWT
BGS
IDL
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