PIC16C432 Datasheet, PDF (52/106 Pages) Microchip Technology – OTP 8-Bit CMOS MCU with LIN Transceiver

PIC16C432
TABLE 9-5:
INITIALIZATION CONDITION FOR SPECIAL REGISTERS
Condition
Program
Counter
STATUS
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
---- --0x
MCLR Reset during normal operation
000h
000u uuuu
---- --uu
MCLR Reset during SLEEP
000h
0001 0uuu
---- --uu
WDT Reset
000h
0000 uuuu
---- --uu
WDT Wake-up
PC + 1
uuu0 0uuu
---- --uu
Brown-out Reset
000h
000x xuuu
---- --u0
Interrupt Wake-up from SLEEP
PC + 1⁽¹⁾
uuu1 0uuu
---- --uu
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’.
Note 1: When the wake-up is due to an interrupt and global enable bit GIE is set, the PC is loaded with the inter-
rupt vector (0004h) after execution of PC+1.
TABLE 9-6:
Register
INITIALIZATION CONDITION FOR REGISTERS
Address
Power-on Reset
MCLR Reset during Normal
Operation
MCLR Reset during SLEEP
WDT Reset
Brown-out Reset⁽¹⁾
Wake-up from SLEEP
through Interrupt
Wake-up from SLEEP
through WDT Timeout
W
—
xxxx xxxx
uuuu uuuu
uuuu uuuu
INDF
00h
—
-
-
TMR0
01h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PCL
02h
0000 0000
0000 0000
PC + 1⁽³⁾
STATUS
03h
0001 1xxx
000q quuu⁽⁴⁾
uuuq quuu⁽⁴⁾
FSR
04h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PORTA
05h
---x xxxx
---u uuuu
---u uuuu
PORTB
06h
xxxx xxxx
uuuu uuuu
uuuu uuuu
CMCON
1Fh
00-- 0000
00-- 0000
uu-- uuuu
PCLATH
0Ah
---0 0000
---0 0000
---u uuuu
INTCON
0Bh
0000 000x
0000 000u
uuuu uqqq⁽²⁾
PIR1
0Ch
-0-- ----
-0-- ----
-q-- ----^(2,5)
OPTION
81h
1111 1111
1111 1111
uuuu uuuu
TRISA
85h
---1 1111
---1 1111
---u uuuu
TRISB
86h
1111 1111
1111 1111
uuuu uuuu
PIE1
8Ch
-0-- ----
-0-- ----
-u-- ----
PCON
8Eh
---- --0x
---- --uq^(1,6)
---- --uu
LININTF
90h
---- -111
---- -1-1
---- -1-1
VRCON
9Fh
000- 0000
000- 0000
uuu- uuuu
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’, q = value depends on condition
Note 1: If VDD goes too low, Power-on Reset will be activated and registers will be affected differently.
2: One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up).
3: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt
vector (0004h).
4: See Table 9-5 for RESET value for specific conditions.
5: If wake-up was due to comparator input changing , then bit 6 = 1. All other interrupts generating a wake-
up will cause bit 6 = u.
6: If RESET was due to brown-out, then PCON bit0 = 0. All other RESETS will cause bit0 = u.
DS41140B-page 50
Preliminary
 2002 Microchip Technology Inc.