參數(shù)資料
型號: AT89C51CC01UA-RLTUM
廠商: Atmel
文件頁數(shù): 72/123頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 32K 44-VQFP
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 800
系列: AT89C CAN
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: CAN,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LQFP
包裝: 托盤
產(chǎn)品目錄頁面: 616 (CN2011-ZH PDF)
配用: AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
其它名稱: AT89C51CC01UARLTUM
2007 Microchip Technology Inc.
Preliminary
DS70165E-page 161
dsPIC33F
11.0
TIMER1
The Timer1 module is a 16-bit timer, which can serve
as the time counter for the real-time clock, or operate
as a free-running interval timer/counter. Timer1 can
operate in three modes:
16-bit Timer
16-bit Synchronous Counter
16-bit Asynchronous Counter
Timer1 also supports these features:
Timer gate operation
Selectable prescaler settings
Timer operation during CPU Idle and Sleep
modes
Interrupt on 16-bit Period register match or falling
edge of external gate signal
Figure 11-1 presents a block diagram of the 16-bit timer
module.
To configure Timer1 for operation:
1.
Set the TON bit (= 1) in the T1CON register.
2.
Select the timer prescaler ratio using the
TCKPS<1:0> bits in the T1CON register.
3.
Set the Clock and Gating modes using the TCS
and TGATE bits in the T1CON register.
4.
Set or clear the TSYNC bit in T1CON to select
synchronous or asynchronous operation.
5.
Load the timer period value into the PR1
register.
6.
If interrupts are required, set the interrupt enable
bit, T1IE. Use the priority bits, T1IP<2:0>, to set
the interrupt priority.
FIGURE 11-1:
16-BIT TIMER1 MODULE BLOCK DIAGRAM
Note:
This data sheet summarizes the features
of this group of dsPIC33F devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the “dsPIC30F
Family Reference Manual” (DS70046).
TON
SOSCI
SOSCO/
PR1
Set T1IF
Equal
Comparator
TMR1
Reset
SOSCEN
1
0
TSYNC
Q
QD
CK
TCKPS<1:0>
Prescaler
1, 8, 64, 256
2
TGATE
TCY
1
0
T1CK
TCS
1x
01
TGATE
00
Sync
Gate
Sync
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