參數(shù)資料
型號: PIC16LF1828T-I/SO
廠商: Microchip Technology
文件頁數(shù): 8/101頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 7KB FLASH 20SOIC
標(biāo)準(zhǔn)包裝: 1,600
系列: PIC® XLP™ mTouch™ 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 32MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 17
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 12x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
155
2552K–AVR–04/11
ATmega329/3290/649/6490
Bit 2:0 – CS22:0: Clock Select
The three Clock Select bits select the clock source to be used by the Timer/Counter, see Table
17.11.2
TCNT2 – Timer/Counter Register
The Timer/Counter Register gives direct access, both for read and write operations, to the
Timer/Counter unit 8-bit counter. Writing to the TCNT2 Register blocks (removes) the compare
match on the following timer clock. Modifying the counter (TCNT2) while the counter is running,
introduces a risk of missing a compare match between TCNT2 and the OCR2A Register.
17.11.3
OCR2A – Output Compare Register A
The Output Compare Register A contains an 8-bit value that is continuously compared with the
counter value (TCNT2). A match can be used to generate an Output Compare interrupt, or to
generate a waveform output on the OC2A pin.
17.11.4
ASSR – Asynchronous Status Register
Bit 4 – EXCLK: Enable External Clock Input
When EXCLK is written to one, and asynchronous clock is selected, the external clock input buf-
fer is enabled and an external clock can be input on Timer Oscillator 1 (TOSC1) pin instead of a
32kHz crystal. Writing to EXCLK should be done before asynchronous operation is selected.
Note that the crystal Oscillator will only run when this bit is zero.
Table 17-6.
Clock Select Bit Description
CS22
CS21
CS20
Description
000
No clock source (Timer/Counter stopped).
001
clkT2S/(No prescaling)
010
clkT2S/8 (From prescaler)
011
clkT2S/32 (From prescaler)
100
clkT2S/64 (From prescaler)
101
clkT2S/128 (From prescaler)
110
clkT2S/256 (From prescaler)
111
clkT2S/1024 (From prescaler)
Bit
765
4321
0
TCNT2[7:0]
TCNT2
Read/Write
R/W
Initial Value
000
0000
0
Bit
765
4321
0
OCR2A[7:0]
OCR2A
Read/Write
R/W
Initial Value
000
0000
0
Bit
765
4
3
2
1
0
EXCLK
AS2
TCN2UB
OCR2UB
TCR2UB
ASSR
Read/Write
R
R/W
R
Initial Value
0
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