参数资料
型号: PIC12LF1840-E/MF
厂商: Microchip Technology
文件页数: 19/122页
文件大小: 0K
描述: MCU 7KB FLASH 256B RAM XLP 8DFN
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 ~ 125°C
封装/外壳: 8-VDFN 裸露焊盘
包装: 管件
2011 Microchip Technology Inc.
Preliminary
DS41441B-page 115
PIC12(L)F1840
REGISTER 12-2:
PORTA: PORTA REGISTER
U-0
R/W-x/x
R-x/x
R/W-x/x
RA5
RA4
RA3
RA2
RA1
RA0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-6
Unimplemented:
Read as ‘0
bit 5-0
RA<5:0>
: PORTA I/O Value bits(1)
1
= Port pin is > VIH
0
= Port pin is < VIL
Note 1:
Writes to PORTA are actually written to corresponding LATA register. Reads from PORTA register is return
of actual I/O pin values.
REGISTER 12-3:
TRISA: PORTA TRI-STATE REGISTER
U-0
R/W-1/1
R-1/1
R/W-1/1
TRISA5
TRISA4
TRISA3
TRISA2
TRISA1
TRISA0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-6
Unimplemented:
Read as ‘0
bit 5-4
TRISA<5:4>:
PORTA Tri-State Control bits
1
= PORTA pin configured as an input (tri-stated)
0
= PORTA pin configured as an output
bit 3
TRISA3:
RA3 Port Tri-State Control bit
This bit is always ‘1’ as RA3 is an input only
bit 2-0
TRISA<2:0>:
PORTA Tri-State Control bits
1
= PORTA pin configured as an input (tri-stated)
0
= PORTA pin configured as an output
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