RFPIC12F675K Datasheet, PDF (64/136 Pages) Microchip Technology – 20-Pin FLASH-Based 8-Bit CMOS Microcontroller with UHF ASK/FSK Transmitter

rfPIC12F675
TABLE 10-3: TIME-OUT IN VARIOUS SITUATIONS
Oscillator Configuration
Power-up
PWRTE = 0 PWRTE = 1
XT, HS, LP
RC, EC, INTOSC
TPWRT +
1024•TOSC
TPWRT
1024•TOSC
—
Brown-out Detect
PWRTE = 0
TPWRT +
1024•TOSC
TPWRT
PWRTE = 1
1024•TOSC
—
Wake-up
from SLEEP
1024•TOSC
—
TABLE 10-4: STATUS/PCON BITS AND THEIR SIGNIFICANCE
POR
BOD
TO
PD
0
u
1
1
1
0
1
1
u
u
0
u
u
u
0
0
u
u
u
u
u
u
1
0
Legend: u = unchanged, x = unknown
Power-on Reset
Brown-out Detect
WDT Reset
WDT Wake-up
MCLR Reset during normal operation
MCLR Reset during SLEEP
TABLE 10-5: SUMMARY OF REGISTERS ASSOCIATED WITH BROWN-OUT
Address Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOD
Value on all
other
RESETS⁽¹⁾
03h
STATUS IRP RP1 RPO TO PD
Z
DC
C 0001 1xxx 000q quuu
8Eh
PCON
—
—
—
—
—
— POR BOD ---- --0x ---- --uq
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’, q = value depends on condition.
Note 1: Other (non Power-up) Resets include MCLR Reset, Brown-out Detect and Watchdog Timer Reset during
normal operation.
TABLE 10-6: INITIALIZATION CONDITION FOR SPECIAL REGISTERS
Condition
Program
Counter
STATUS
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
---- --0x
MCLR Reset during normal operation
000h
000u uuuu
---- --uu
MCLR Reset during SLEEP
000h
0001 0uuu
---- --uu
WDT Reset
000h
0000 uuuu
---- --uu
WDT Wake-up
PC + 1
uuu0 0uuu
---- --uu
Brown-out Detect
Interrupt Wake-up from SLEEP
000h
PC + 1⁽¹⁾
0001 1uuu
uuu1 0uuu
---- --10
---- --uu
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’.
Note 1: When the wake-up is due to an interrupt and global enable bit GIE is set, the PC is loaded with the
interrupt vector (0004h) after execution of PC+1.
DS70091A-page 62
Preliminary
 2003 Microchip Technology Inc.