参数资料
型号: PIC12LF1840-E/P
厂商: Microchip Technology
文件页数: 20/122页
文件大小: 0K
描述: MCU 7KB FLASH 256B RAM XLP 8PDIP
标准包装: 60
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-DIP(0.300",7.62mm)
包装: 管件
PIC12(L)F1840
DS41441B-page 116
Preliminary
2011 Microchip Technology Inc.
REGISTER 12-4:
LATA: PORTA DATA LATCH REGISTER
U-0
R/W-x/u
U-0
R/W-x/u
—LATA5
LATA4
LATA2
LATA1
LATA0
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
LATA<5:4>
: RA<5:4> Output Latch Value bits(1)
bit 3
Unimplemented:
Read as ‘0
bit 2-0
LATA<2:0>
: RA<2:0> Output Latch Value bits(1)
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 12-5:
ANSELA: PORTA ANALOG SELECT REGISTER
U-0
R/W-1/1
U-0
R/W-1/1
ANSA4
ANSA2
ANSA1
ANSA0
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 7-5
Unimplemented:
Read as ‘0’
bit 4
ANSA4
: Analog Select between Analog or Digital Function on pins RA4, respectively
0
= Digital I/O. Pin is assigned to port or digital special function.
1
= Analog input. Pin is assigned as analog input(1). Digital input buffer disabled.
bit 3
Unimplemented:
Read as ‘0’
bit 2-0
ANSA<2:0>
: Analog Select between Analog or Digital Function on pins RA<2:0>, respectively
0
= Digital I/O. Pin is assigned to port or digital special function.
1
= Analog input. Pin is assigned as analog input(1). Digital input buffer disabled.
Note 1:
When setting a pin to an analog input, the corresponding TRIS bit must be set to Input mode in order to
allow external control of the voltage on the pin.
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