PIC18CXX8
TABLE 3-3: INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Register
Applicable
Devices
Power-on Reset,
Brown-out Reset
MCLR Reset
WDT Reset
RESET Instruction
Stack Resets
Wake-up via WDT
or Interrupt
RXM1SIDL
658
858
xxx- --xx
uuu- --uu
uuu- --uu
RXM1SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXM0EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXM0EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXM0SIDL
658
858
xxx- --xx
uuu- --uu
uuu- --uu
RXM0SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF5EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF5EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF5SIDL
658
858
xxx- x-xx
uuu- u-uu
uuu- u-uu
RXF5SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF4EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF4EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF4SIDL
658
858
xxx- x-xx
uuu- u-uu
uuu- u-uu
RXF4SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF3EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF3EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF3SIDL
658
858
xxx- x-xx
uuu- u-uu
uuu- u-uu
RXF3SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF2EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF2EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF2SIDL
658
858
xxx- x-xx
uuu- u-uu
uuu- u-uu
RXF2SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF1EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF1EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF1SIDL
658
858
xxx- x-xx
uuu- u-uu
uuu- u-uu
RXF1SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF0EIDL
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF0EIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
RXF0SIDL
658
858
xxx- x-xx
uuu- u-uu
uuu- u-uu
RXF0SIDH
658
858
xxxx xxxx
uuuu uuuu
uuuu uuuu
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ’0’, q = value depends on condition
Note 1: One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).
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
vector (0008h or 0018h).
3: 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.
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
oscillator modes, they are disabled and read ’0’.
6: The long write enable is only reset on a POR or MCLR.
7: Available on PIC18C858 only.
DS30475A-page 40
Advanced Information
2000 Microchip Technology Inc.