參數(shù)資料
型號(hào)： ST62E30BF1
英文描述： MICROCONTROLLER|8-BIT|ST6200 CPU|CMOS|DIP|28PIN|CERAMIC
中文描述： 單片機(jī)| 8位| ST6200的CPU |的CMOS |雙酯| 28腳|陶瓷
文件頁(yè)數(shù)： 45/86頁(yè)
文件大?。?/td> 531K
代理商： ST62E30BF1
45/86
ST62T30B ST62E30B
TIMER
(Cont’d)
5.1.1 Timer Operating Modes
There are three operating modes, which are se-
lected by the TOUT and DOUT bits (see TSCR
register). These three modes correspond to the
two clocks which can be connected to the 7-bit
prescaler (f
INT
÷
12 or TIMER pin signal), and to
the output mode.
5.1.1.1 Gated Mode
(TOUT = “0”, DOUT = “1”)
In this mode the prescaler is decremented by the
Timer clock input (f
INT
÷
12), but ONLY when the
signal on the TIMER pin is held high (allowing
pulse width measurement). This mode is selected
by clearing the TOUT bit in the TSCR register to
“0” (i.e. as input) and setting the DOUT bit to “1”.
5.1.1.2 Event Counter Mode
(TOUT = “0”, DOUT = “0”)
In this mode, the TIMER pin is the input clock of
the prescaler which is decremented on the rising
edge.
5.1.1.3 Output Mode
(TOUT = “1”, DOUT = data out)
The TIMER pin is connected to the DOUT latch,
hence the Timer prescaler is clocked by the pres-
caler clock input (f
INT
÷
12).
The user can select the desired prescaler division
ratio through the PS2, PS1, PS0 bits. When the
TCR count reaches 0, it sets the TMZ bit in the
TSCR. The TMZ bit can be tested under program
control to perform a timer function whenever it
goes high. The low-to-high TMZ bit transition is
used to latch theDOUT bit of the TSCR and trans-
fer itto the TIMER pin. This operating mode allows
external signal generation on the TIMER pin.
Table 15. Timer Operating Modes
5.1.2 Timer Interrupt
When thecounter register decrements to zero with
the ETI (Enable Timer Interrupt) bit set to one, an
interrupt request is generated as described in the
Interrupt Chapter. When the counter decrements
to zero, the TMZ bit in the TSCR register is set to
one.
Figure 25. Timer Working Principle
TOUT
0
0
1
1
DOUT
0
1
0
1
Timer Pin
Input
Input
Output
Output
Timer Function
Event Counter
Gated Input
Output “0”
Output “1”
BIT0
BIT1
BIT2
BIT3
BIT6
BIT5
BIT4
CLOCK
7-BIT PRESCALER
8-1 MULTIPLEXER
8-BIT COUNTER
BIT0
BIT1
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
1
0
2
3
4
5
6
7
PS0
PS1
PS2
VA00186
相關(guān)PDF資料
PDF描述
ST623X-KIT 8 MBIT (X8, BLOCK ERASE) FLASH MEMORY
ST62T32BB3 8-BIT MICROCONTROLLER
ST62T32BQ3 8-BIT MICROCONTROLLER
ST623X-DBE D/A Converter (D-A) IC; Resolution (Bits):24; Update Rate:192kSPS; No. of DACs:6; Data Interface:Serial; Package/Case:48-LQFP; Leaded Process Compatible:No; No. of Bits:24; No. of Channels:6; Operating Temp. Max:85 C RoHS Compliant: Yes
ST623X-EMU2 REAL TIME EMULATION DEVELOPMENT TOOLS FOR ST6 MCU FAMILY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST62E32 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:EPROM PROGRAMMING BOARDS FOR ST62 MCU FAMILY
ST62E32B 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, 16-BIT AUTO-RELOAD TIMER, EEPROM, SPI AND UART
ST62E32BF1 功能描述:8位微控制器 -MCU UV EPROM 8K SPI/UART RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST62E35B 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, 16-BIT AUTO-RELOAD TIMER, EEPROM, SPI AND UART
ST62E35BG1 功能描述:8位微控制器 -MCU UV EPROM 8K RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*