參數(shù)資料
型號: PIC12LF1840-E/MF
廠商: Microchip Technology
文件頁數(shù): 20/122頁
文件大?。?/td> 0K
描述: MCU 7KB FLASH 256B RAM XLP 8DFN
標(biāo)準(zhǔn)包裝: 120
系列: PIC® XLP™ 12F
核心處理器: PIC
芯體尺寸: 8-位
速度: 32MHz
連通性: I²C,LIN,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 5
程序存儲器容量: 7KB(4K x 14)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 8-VDFN 裸露焊盤
包裝: 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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