PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 52

• Manufacturer Part Number: PIC18F2331
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2331/2431/4331/4431
TABLE 4-3:
DS39616B-page 50
ADRESH
ADRESL
ADCON0
ADCON1
ADCON2
CCPR1H
CCPR1L
CCP1CON
CCPR2H
CCPR2L
CCP2CON
ANSEL0
ANSEL1
T5CON
QEICON
SPBRGH
SPBRG
RCREG
TXREG
TXSTA
RCSTA
BAUDCTL
EEADR
EEDATA
EECON1
EECON2
IPR3
PIE3
PIR3
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’, q = value depends on condition.
Note 1:
Register
2:
3:
4:
5:
6:
Shaded cells indicate conditions do not apply for the designated device.
One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).
When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the PC is loaded with the interrupt
vector (0008h or 0018h).
When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the TOSU, TOSH and TOSL are
updated with the current value of the PC. The STKPTR is modified to point to the next location in the
hardware stack.
See Table 4-2 for Reset value for specific condition.
Bits 6 and 7 of PORTA, LATA and TRISA are enabled, depending on the Oscillator mode selected. When
not enabled as PORTA pins, they are disabled and read ‘0’.
Bit 3 of PORTE and LATE are enabled if MCLR functionality is disabled. When not enabled as the PORTE
pin, they are disabled and read as ‘0’. The 28-pin devices have only RE3 on PORTE when MCLR is
disabled.
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Applicable Devices
INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Brown-out Reset
Power-on Reset,
xxxx xxxx
xxxx xxxx
--00 0000
00-0 1000
0000 0000
xxxx xxxx
xxxx xxxx
--00 0000
xxxx xxxx
xxxx xxxx
--00 0000
1111 1111
---- ---0
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 -010
0000 000x
-1-1 0-00
0000 0000
0000 0000
xx-0 x000
0000 0000
---1 1111
---0 0000
---0 0000
Preliminary
RESET Instruction
MCLR Resets
Stack Resets
uuuu uuuu
uuuu uuuu
--00 0000
00-- 1000
0000 0000
uuuu uuuu
uuuu uuuu
--00 0000
uuuu uuuu
uuuu uuuu
--00 0000
1111 1111
---- ---0
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 -010
0000 000x
-1-1 0-00
0000 0000
0000 0000
uu-0 u000
0000 0000
---1 1111
---0 0000
---0 0000
WDT Reset
 2003 Microchip Technology Inc.
Wake-up via WDT
or Interrupt
uuuu uuuu
uuuu uuuu
--uu uuuu
uu-u uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
uuuu uuuu
---- ---u
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu -uuu
uuuu uuuu
-u-u u-uu
uuuu uuuu
uuuu uuuu
uu-0 u000
0000 0000
---u uuuu
---u uuuu
---u uuuu