参数资料
型号: PIC12LF1840-I/MF
厂商: Microchip Technology
文件页数: 96/122页
文件大小: 0K
描述: MCU 7KB FLASH 256B RAM 8-DFN
产品培训模块: 8-bit PIC® Microcontroller Portfolio
标准包装: 120
系列: PIC® XLP™ 12F
核心处理器: PIC
芯体尺寸: 8-位
速度: 32MHz
连通性: I²C,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 5
程序存储器容量: 7KB(4K x 14)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-VDFN 裸露焊盘
包装: 管件
2011 Microchip Technology Inc.
Preliminary
DS41441B-page 75
PIC12(L)F1840
7.11
Power Control (PCON) Register
The Power Control (PCON) register contains flag bits
to differentiate between a:
Power-on Reset (POR)
Brown-out Reset (BOR)
Reset Instruction Reset (RI)
Stack Overflow Reset (STKOVF)
Stack Underflow Reset (STKUNF)
MCLR Reset (RMCLR)
The PCON register bits are shown in Register 7-2.
REGISTER 7-2:
PCON: POWER CONTROL REGISTER
R/W/HS-0/q
U-0
R/W/HC-1/q
R/W/HC-q/u R/W/HC-q/u
STKOVF
STKUNF
RMCLR
RI
POR
BOR
bit 7
bit 0
Legend:
HC = Bit is cleared by hardware
HS = Bit is set by hardware
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-m/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
q = Value depends on condition
bit 7
STKOVF:
Stack Overflow Flag bit
1
= A Stack Overflow occurred
0
= A Stack Overflow has not occurred or set to ‘0’ by firmware
bit 6
STKUNF:
Stack Underflow Flag bit
1
= A Stack Underflow occurred
0
= A Stack Underflow has not occurred or set to ‘0’ by firmware
bit 5-4
Unimplemented:
Read as ‘0’
bit 3
RMCLR:
MCLR Reset Flag bit
1
= A MCLR Reset has not occurred or set to ‘1’ by firmware
0
= A MCLR Reset has occurred (set to ‘0’ in hardware when a MCLR Reset occurs)
bit 2
RI: RESET
Instruction Flag bit
1
= A RESET instruction has not been executed or set to ‘1’ by firmware
0
= A RESET instruction has been executed (set to ‘0’ in hardware upon executing a RESET instruction)
bit 1
POR:
Power-on Reset Status bit
1
= No Power-on Reset occurred
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
= No Brown-out Reset occurred
0
= A Brown-out Reset occurred (must be set in software after a Power-on Reset or Brown-out Reset
occurs)
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