PIC18F45J50-I/SOSQTP 查看數據表（PDF） - Microchip Technology

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PIC18F45J50-I/SOSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

REGISTER 5-1:

R/W-0

IPEN

bit 7

RCON: RESET CONTROL REGISTER (ACCESS FD0h)

U-0

R/W-1

R/W-1

R-1

R-1

—

CM

RI

TO

PD

R/W-0

POR

R/W-0

BOR

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

IPEN: Interrupt Priority Enable bit

1 = Enable priority levels on interrupts

0 = Disable priority levels on interrupts (PIC16CXXX Compatibility mode)

bit 6

Unimplemented: Read as ‘0’

bit 5

CM: Configuration Mismatch Flag bit

1 = A Configuration Mismatch Reset has not occurred

0 = A Configuration Mismatch Reset has occurred (must be set in software after a Configuration

Mismatch Reset occurs)

bit 4

RI: RESET Instruction Flag bit

1 = The RESET instruction was not executed (set by firmware only)

0 = The RESET instruction was executed causing a device Reset (must be set in software after a

Brown-out Reset occurs)

bit 3

TO: Watchdog Time-out Flag bit

1 = Set by power-up, CLRWDT instruction or SLEEP instruction

0 = A WDT time-out occurred

bit 2

PD: Power-Down Detection Flag bit

1 = Set by power-up or by the CLRWDT instruction

0 = Set by execution of the SLEEP instruction

bit 1

POR: Power-on Reset Status bit

1 = A Power-on Reset has not occurred (set by firmware only)

0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)

bit 0

BOR: Brown-out Reset Status bit

1 = A Brown-out Reset has not occurred (set by firmware only)

0 = A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)

Note 1: It is recommended that the POR bit be set after a Power-on Reset has been detected, so that subsequent

Power-on Resets may be detected.

2: If the on-chip voltage regulator is disabled, BOR remains ‘0’ at all times. See Section 5.4.1 “Detecting

BOR” for more information.

3: Brown-out Reset is said to have occurred when BOR is ‘0’ and POR is ‘1’ (assuming that POR was set to

‘1’ by software immediately after a Power-on Reset).

DS39931D-page 64

 2011 Microchip Technology Inc.

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