Microchip Technology MA240029 データシート
PIC24FJ128GA310 FAMILY
DS39996F-page 92
2010-2011 Microchip Technology Inc.
REGISTER 7-2:
RCON2: RESET AND SYSTEM CONTROL REGISTER 2
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
bit 15
bit 8
U-0
U-0
U-0
r-0
R/CO-1
R/CO-1
R/CO-1
R/CO-0
—
—
—
r
VDDBOR
VDDPOR
)
VBPOR
,
)
VBAT
bit 7
bit 0
Legend:
CO = Clearable Only bit
r = Reserved bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-5
Unimplemented:
Read as ‘0’
bit 4
Reserved:
Maintain as ‘0’
bit 3
VDDBOR:
V
DD
Brown-out Reset Flag bit
1
= A V
DD
Brown-out Reset has occurred (set by hardware)
0
= A V
DD
Brown-out Reset has not occurred
bit 2
VDDPOR:
V
DD
Power-On Reset Flag bit
(
1
= A V
DD
Power-up Reset has occurred (set by hardware)
0
= A V
DD
Power-up Reset has not occurred
bit 1
VBPOR:
VBPOR Flag bit
(
1
= A V
BAT
POR has occurred (no battery connected to V
BAT
pin, or V
BAT
power below Deep Sleep
Semaphore retention level, set by hardware)
0
= A V
BAT
POR has not occurred
bit 0
VBAT:
V
BAT
Flag bit
1
= A POR exit has occurred while power was applied to V
BAT
pin (set by hardware)
0
= A POR exit from V
BAT
has not occurred
Note 1:
This bit is set in hardware only; it can only be cleared in software.
2:
Indicates a V
DD
POR. Setting the POR bit (RCON<0>) indicates a V
CORE
POR.
3:
This bit is set when the device is originally powered up, even if power is present on V
BAT
.