參數(shù)資料
型號: AT89S52-24AI
廠商: Atmel
文件頁數(shù): 27/37頁
文件大?。?/td> 0K
描述: IC MCU 8K FLASH 24MHZ 44-TQFP
標準包裝: 160
系列: 89S
核心處理器: 8051
芯體尺寸: 8-位
速度: 24MHz
連通性: UART/USART
外圍設(shè)備: WDT
輸入/輸出數(shù): 32
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
PIC12F629/675
DS41190G-page 34
2010 Microchip Technology Inc.
REGISTER 5-1:
T1CON: TIMER1 CONTROL REGISTER (ADDRESS: 10h)
U-0
R/W-0
TMR1GE
T1CKPS1
T1CKPS0
T1OSCEN
T1SYNC
TMR1CS
TMR1ON
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
Unimplemented: Read as ‘0’
bit 6
TMR1GE: Timer1 Gate Enable bit
If TMR1ON = 0:
This bit is ignored
If TMR1ON = 1:
1
= Timer1 is on if T1G pin is low
0
= Timer1 is on
bit 5-4
T1CKPS1:T1CKPS0: Timer1 Input Clock Prescale Select bits
11
= 1:8 Prescale Value
10
= 1:4 Prescale Value
01
= 1:2 Prescale Value
00
= 1:1 Prescale Value
bit 3
T1OSCEN: LP Oscillator Enable Control bit
If INTOSC without CLKOUT oscillator is active:
1
= LP oscillator is enabled for Timer1 clock
0
= LP oscillator is off
Else:
This bit is ignored
bit 2
T1SYNC: Timer1 External Clock Input Synchronization Control bit
TMR1CS = 1:
1
= Do not synchronize external clock input
0
= Synchronize external clock input
TMR1CS = 0:
This bit is ignored. Timer1 uses the internal clock.
bit 1
TMR1CS: Timer1 Clock Source Select bit
1 = External clock from T1OSO/T1CKI pin (on the rising edge)
0 = Internal clock (FOSC/4)
bit 0
TMR1ON: Timer1 On bit
1
= Enables Timer1
0
= Stops Timer1
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