
MCV18E
DS41399A-page 74
2009 Microchip Technology Inc.
TABLE 9-6:
INITIALIZATION CONDITIONS FOR ALL REGISTERS OF THE MCV18E
Register
Power-on Reset,
Brown-out Reset
MCLR Resets
WDT Reset
Wake-up via WDT or
Interrupt
W
xxxx xxxx
uuuu uuuu
INDF
N/A
TMR0
xxxx xxxx
uuuu uuuu
PCL
0000h
PC + 1(2)
STATUS
0001 1xxx
000q quuu(3)
uuuq quuu(3)
FSR
xxxx xxxx
uuuu uuuu
PORTA(4), (5), (6)
--xx 0000
--uu uuuu
PORTB(4), (5)
xxxx xxxx
uuuu uuuu
PCLATH
---0 0000
---u uuuu
INTCON
0000 -00x
0000 -00u
uuuu -uuu(1)
PIR1
-0-- -000
-u-- -uuu(1)
TMR1L
xxxx xxxx
uuuu uuuu
TMR1H
xxxx xxxx
uuuu uuuu
T1CON
--00 0000
--uu uuuu
TMR2
0000 0000
uuuu uuuu
T2CON
-000 0000
-uuu uuuu
CCPR1L
xxxx xxxx
uuuu uuuu
CCPR1H
xxxx xxxx
uuuu uuuu
CCP1CON
0000 0000
uuuu uuuu
PWM1CON
0000 0000
uuuu uuuu
ECCPAS
00-0 0000
u-uu uuuu
ADRES
xxxx xxxx
uuuu uuuu
ADCON0
0000 0000
uuuu uuuu
OPTION_REG
1111 1111
uuuu uuuu
TRISA
--11 1111
--uu uuuu
TRISB
1111 1111
uuuu uuuu
PIE1
-0-- -000
-u-- -uuu
PCON
---- --qq
---- --uu
PR2
1111 1111
uuuu uuuu
ADCON1
---- -000
---- -uuu
Legend: u = unchanged,
x
= unknown,
-
= unimplemented bit, read as ‘0’, q = value depends on condition
Note 1:
One or more bits in INTCON and/or PIR1 will be affected (to cause wake-up).
2:
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector
(0004h).
3:
See
Table 9-5 for Reset value for specific condition.
4:
On any device Reset, these pins are configured as inputs.
5:
This is the value that will be in the PORT output latch.
6:
Output latches are unknown or unchanged. Analog inputs default to analog and read ‘0’.