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| 型号： | ST6210CN6/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | ROHS COMPLIANT, PLASTIC, SSOP-20 |
| 文件页数： | 48/104页 |
| 文件大小： | 1661K |
| 代理商： | ST6210CN6/XXX |
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ST6208C/ST6209C/ST6210C/ST6220C
48/104
8-BIT TIMER (Cont’d)
8.2.4 Functional Description
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 (fINT ÷ 12 or TIMER pin signal), and to
the output mode.
The settings for the different operating modes are
summarized Table 13.
Table 13. Timer Operating Modes
8.2.4.1 Gated Mode
(TOUT = “0”, DOUT = “1”)
In this mode, the prescaler is decremented by the
Timer clock input, but only when the signal on the
TIMER pin is held high (fINT/12 gated by TIMER
pin). See Figure 28 and Figure 29.
This mode is selected by clearing the TOUT bit in
the TSCR register (i.e. as input) and setting the
DOUT bit.
Note: In this mode, if the TIMER pin is multi-
plexed, the corresponding port control bits have to
be set in input with pull-up configuration through
the DDR, OR and DR registers. For more details,
please refer to the I/O Ports section.
Figure 28. fTIMER Clock in Gated Mode
Figure 29. Gated Mode Operation
TOUT DOUT
Timer
Function
Application
00
Event Counter
(input)
External counter clock
source
01
Gated input
(input)
External Pulse length
measurement
10
Output “0”
(output)
Output signal
11
Output “1”
(output)
generation
fPRESCALER
TIMER
fINT/12
fEXT
xx1
1
COUNTER VALUE
TIMER PIN
TIMER CLOCK
VALUE 1
VALUE 2
PULSE LENGTH
xx2
1
相关PDF资料 |
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| ST6220CM1/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| ST6220CN6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| ST6209CM1/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| ST6209CN1/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| ST6209CN6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST6210L | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW VOLTAGE 8-BIT ROM MCUs WITH A/D CONVERTER AND 20 PINS |
| ST6210LB1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW VOLTAGE 8-BIT ROM MCUs WITH A/D CONVERTER AND 20 PINS |
| ST6210LB1/OTP | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET |
| ST6210LB1/XXX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| ST6210LB3/OTP | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET |
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