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參數(shù)資料
| 型號(hào)： | ST62T03C |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8-Bit OTP MCUs with A/D Converter, Oscillator Safeguard, Safe Reset and 16 Pins(８位ＯＴＰ微處理器（８Ｍ）) |
| 中文描述： | 8位微控制器與檢察官辦公室的A / D轉(zhuǎn)換器，振蕩器保障，安全復(fù)位和16引腳（8位檢察官辦公室微處理器（8米）） |
| 文件頁(yè)數(shù)： | 37/70頁(yè) |
| 文件大小： | 747K |
| 代理商： | ST62T03C |
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ST62T00C/T01C ST62T03C/E01C
4.2 TIMER
The MCU features an on-chip Timer peripheral,
consisting of an 8-bit counter with a 7-bit program-
mable prescaler, giving a maximum count of 2
15
.
Figure 24
shows the Timer Block Diagram. The
content of the 8-bit counter can be read/written in
the Timer/Counter register, TCR, which can be ad-
dressed in Data space as a RAM location at ad-
dress 0D3h. The state of the 7-bit prescaler can be
read in the PSC register at address 0D2h. The
control logic device is managed in the TSCR reg-
ister as described in the following paragraphs.
The 8-bit counter is decrement by the output (ris-
ing edge) coming from the 7-bit prescaler and can
be loaded and read under program control. When
it decrements to zero then the TMZ (Timer Zero)bit
in the TSCR is set. If the ETI (Enable Timer Inter-
rupt) bit in the TSCR is also set, an interrupt re-
quest is generated. The Timer interrupt can be
used to exit the MCU from WAIT mode.
The prescaler input is the internal frequency (f
INT
)
divided by 12. The prescaler decrements on the
rising edge. Depending on the division factor pro-
grammed by PS2, PS1 and PS0 bits in the TSCR
(see
Figure 11
), the clock input of the timer/coun-
ter register is multiplexed to different sources. For
division factor 1, the clock input of the prescaler is
also that of timer/counter; for factor 2, bit 0 of the
prescaler register is connected to the clock input of
TCR. This bit changes its state at half the frequen-
cy of the prescaler input clock. For factor 4, bit 1 of
the PSC is connected to the clock input of TCR,
and so forth. The prescaler initialize bit, PSI, in the
TSCR register must be set to allow the prescaler
(and hence the counter) to start. If it is cleared, all
the prescaler bits are set and the counter is inhib-
ited from counting. The prescaler can be loaded
with any value between 0 and 7Fh, if bit PSI is set.
The prescaler tap is selected by means of the
PS2/PS1/PS0 bits in the control register.
Figure 25
illustrates the Timer’s working principle.
Figure 24. Timer Block Diagram
DATA BUS
8-BIT
COUNTER
STATUS/CONTROL
REGISTER
INTERRUPT
LINE
VR02070A
3
8
8
8
6
5
4
3
2
1
0
SELECT
1 OF 7
12
b7 b6
b5
b4
b3
b2
b1
b0
TMZ ETI D5
D4 PSI PS2 PS1 PS0
f
INT
PSC
53
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST62T00C | 8-Bit OTP MCUs with A/D Converter, Oscillator Safeguard, Safe Reset and 16 Pins(8位OTP微處理器（8M）) |
| ST62T09C(中文) | 8-Bit OTP/EPROM MCUs with A/D Converter,Oscillator Safeguard, Safe Reset and 20 Pins(8位OTP/EPROM微控制器(8M)) |
| ST62T08C(中文) | 8-Bit OTP/EPROM MCUs with A/D Converter,Oscillator Safeguard, Safe Reset and 20 Pins(8位OTP/EPROM微控制器(8M)) |
| ST62T10C(中文) | 8-Bit OTP/EPROM MCUs with A/D Converter,Oscillator Safeguard, Safe Reset and 20 Pins(8位OTP/EPROM微控制器(8M)) |
| ST62E20C(中文) | 8-Bit OTP/EPROM MCUs with A/D Converter,Oscillator Safeguard, Safe Reset and 20 Pins(8位OTP/EPROM微控制器(8M)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST62T03CB6 | 功能描述:8位微控制器 -MCU OTP EPROM 1K No Intf 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 |
| ST62T03CB6 | 制造商:STMicroelectronics 功能描述:IC 8BIT MCU OTP 1K 62T03 DIP16 |
| ST62T03CM3 | 功能描述:8位微控制器 -MCU ST6200C ST6201C ST6203C 8B MCU 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 |
| ST62T03CM3/TR | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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 |
| ST62T03CM6 | 功能描述:8位微控制器 -MCU OTP EPROM 1K No Intf 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 |
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