PIC18C242 MICROCHIP [Microchip Technology], PIC18C242 Datasheet - Page 29
PIC18C242
Manufacturer Part Number
PIC18C242
Description
High-Performance Microcontrollers with 10-Bit A/D
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18C242.pdf
(296 pages)
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TABLE 3-3:
Register
TRISE
TRISD
TRISC
TRISB
TRISA
LATE
LATD
LATC
LATB
LATA
PORTE
PORTD
PORTC
PORTB
PORTA
Legend: u = unchanged,
Note 1: One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).
7/99 Microchip Technology Inc.
(5, 7)
2: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the PC is loaded with the interrupt
3: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the TOSU, TOSH and TOSL are
4: See Table 3-2 for reset value for specific condition.
5: Bit 6 of PORTA, LATA, and TRISA are enabled in ECIO and RCIO oscillator modes only. In all other
6: The long write enable is only reset on a POR or MCLR reset.
7: Bit 6 of PORTA, LATA and TRISA are not available on all devices. When unimplemented, they are read ’0’.
(5, 7)
(5, 7)
vector (0008h or 0018h).
updated with the current value of the PC. The STKPTR is modified to point to the next location in the hard-
ware stack.
oscillator modes, they are disabled and read ’0’.
242
242
242
242
242
242
242
242
242
242
242
242
242
242
242
Applicable Devices
INITIALIZATION CONDITIONS FOR ALL REGISTERS (Cont.’d)
442
442
442
442
442
442
442
442
442
442
442
442
442
442
442
252
252
252
252
252
252
252
252
252
252
252
252
252
252
252
x = unknown,
452
452
452
452
452
452
452
452
452
452
452
452
452
452
452
Brown-out Reset
Power-on Reset,
-111 1111
-xxx xxxx
-x0x 0000
0000 -111
1111 1111
1111 1111
1111 1111
---- -xxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
---- -000
xxxx xxxx
xxxx xxxx
xxxx xxxx
- = unimplemented bit, read as ’0’, q = value depends on condition
Preliminary
(5)
(5)
(5)
Reset Instruction
-111 1111
-uuu uuuu
-u0u 0000
MCLR Resets
Stack Resets
0000 -111
1111 1111
1111 1111
1111 1111
---- -uuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---- -000
uuuu uuuu
uuuu uuuu
uuuu uuuu
WDT Reset
(5)
(5)
(5)
PIC18CXX2
Wake-up via WDT
-uuu uuuu
-uuu uuuu
-uuu uuuu
or Interrupt
uuuu -uuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---- -uuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---- -uuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
DS39026B-page 29
(5)
(5)
(5)
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