12F508 Microchip Technology, 12F508 Datasheet - Page 47

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12F508

Manufacturer Part Number
12F508
Description
Search -----> PIC12F508
Manufacturer
Microchip Technology
Datasheet

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Part Number:
12F508I/SN
Manufacturer:
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TABLE 7-4:
TABLE 7-5:
© 2005 Microchip Technology Inc.
W
INDF
TMR0
PC
STATUS
FSR
OSCCAL
PORTB
PORTC
OPTION
TRISB
TRISC
Legend: u = unchanged, x = unknown, – = unimplemented bit, read as ‘0’, q = value depends on condition.
Note 1:
Power-on Reset
MCLR Reset during normal operation
MCLR Reset during Sleep
WDT Reset during Sleep
WDT Reset normal operation
Wake-up from Sleep on pin change
Legend: u = unchanged, x = unknown, – = unimplemented bit, read as ‘0’.
Register
2:
3:
Bits <7:2> of W register contain oscillator calibration values due to MOVLW XX instruction at top of
memory.
See Table 7-8 for Reset value for specific conditions.
If Reset was due to wake-up on pin change, then bit 7 = 1. All other Resets will cause bit 7 = 0.
RESET CONDITIONS FOR REGISTERS – PIC16F505
RESET CONDITION FOR SPECIAL REGISTERS
Address
00h
01h
02h
03h
04h
05h
06h
07h
Preliminary
Power-on Reset
STATUS Addr: 03h
qqqq qqqu
xxxx xxxx
xxxx xxxx
1111 1111
0001 1xxx
110x xxxx
1111 111-
--xx xxxx
--xx xxxx
1111 1111
--11 1111
--11 1111
PIC12F508/509/16F505
0001 1xxx
000u uuuu
0001 0uuu
0000 0uuu
0000 uuuu
1001 0uuu
(1)
MCLR Reset, WDT Time-out,
Wake-up On Pin Change
qqqq qqqu
q00q quuu
uuuu uuuu
uuuu uuuu
1111 1111
11uu uuuu
uuuu uuu-
--uu uuuu
--uu uuuu
1111 1111
--11 1111
--11 1111
PCL Addr: 02h
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
DS41236B-page 45
(1)
(2), (3)

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