PIC12C508A Microchip Technology, PIC12C508A Datasheet - Page 39

• Manufacturer Part Number: PIC12C508A
• Description: 8-Pin/ 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

TABLE 8-3:
TABLE 8-4:
W (PIC12C508/509)
W (PIC12C508A/509A/
PIC12CE518/519/
PIC12CE509A)
INDF
TMR0
PC
STATUS
FSR (PIC12C508/
PIC12C508A/
PIC12CE518)
FSR (PIC12C509/
PIC12C509A/
PIC12CE519/
PIC12CR509A)
OSCCAL
(PIC12C508/509)
OSCCAL
(PIC12C508A/509A/
PIC12CE518/512/
PIC12CR509A)
GPIO
(PIC12C508/PIC12C509/
PIC12C508A/
PIC12C509A/
PIC12CR509A)
GPIO
(PIC12CE518/
PIC12CE519)
OPTION
TRIS
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’, q = value depends on condition.
Note 1: Bits <7:2> of W register contain oscillator calibration values due to MOVLW XX instruction at top of memory.
Note 2: See Table 8-7 for reset value for specific conditions
Note 3: If reset was due to wake-up on pin change, then bit 7 = 1. All other resets will cause bit 7 = 0.
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’.
1999 Microchip Technology Inc.
Register
RESET CONDITIONS FOR REGISTERS
RESET CONDITION FOR SPECIAL REGISTERS
Address
00h
01h
02h
03h
04h
04h
05h
05h
06h
06h
—
—
—
—
STATUS Addr: 03h
0001 1xxx
000u uuuu
0001 0uuu
0000 0uuu
0000 uuuu
1001 0uuu
Power-on Reset
qqqq xxxx
qqqq qqxx
xxxx xxxx
xxxx xxxx
1111 1111
0001 1xxx
111x xxxx
110x xxxx
0111 ----
1000 00--
--xx xxxx
1111 1111
--11 1111
11xx xxxx
(1)
(1)
PIC12C5XX
Wake-up on Pin Change
PCL Addr: 02h
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
q00q quuu
qqqq uuuu
qqqq qquu
WDT time-out
MCLR Reset
uuuu uuuu
uuuu uuuu
1111 1111
111u uuuu
11uu uuuu
uuuu ----
uuuu uu--
--uu uuuu
1111 1111
--11 1111
11uu uuuu
DS40139E-page 39
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(1)
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