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| 型號(hào)： | 73S1209F-68IMR/F |
| 廠商： | TERIDIAN SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 封裝： | LEAD FREE, QFN-68 |
| 文件頁(yè)數(shù)： | 64/123頁(yè) |
| 文件大小： | 1385K |
| 代理商： | 73S1209F-68IMR/F |
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DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
45
Table 42: Timers/Counters Mode Description
M1
M0
Mode
Function
0
Mode 0
13-bit Counter/Timer.
0
1
Mode 1
16-bit Counter/Timer.
1
0
Mode 2
8-bit auto-reload Counter/Timer.
1
Mode 3
If Timer 1 M1 and M0 bits are set to '1', Timer 1 stops. If Timer 0 M1
and M0 bits are set to '1', Timer 0 acts as two independent 8-bit
Timer/Counters.
Mode 0
Putting either timer/counter into mode 0 configures it as an 8-bit timer/counter with a divide-by-32
prescaler. In this mode, the timer register is configured as a 13-bit register. As the count rolls over from
all 1’s to all 0’s, it sets the timer overflow flag TF0. The overflow flag TF0 then can be used to request an
interrupt. The counted input is enabled to the timer when TRx = 1 and either GATE = 0 or TX = 1 (setting
GATE = 1 allows the timer to be controlled by external input TX, to facilitate pulse width measurements).
TRx are control bits in the special function register TCON; GATE is in TMOD. The 13-bit register consists
of all 8 bits of TH1 and the lower 5 bits of TL0. The upper 3 bits of TL0 are indeterminate and should be
ignored. Setting the run flag (TRx) does not clear the registers. Mode 0 operation is the same for timer 0
as for timer 1.
Mode 1
Mode 1 is the same as mode 0, except that the timer register is run with all 16 bits.
Mode 2
Mode 2 configures the timer register as an 8-bit counter (TLx) with automatic reload. The overflow from
TLx not only sets TFx, but also reloads TLx with the contents of THx, which is preset by software. The
reload leaves THx unchanged.
Mode 3
Mode 3 has different effects on timer 0 and timer 1. Timer 1 in mode 3 simply holds its count. The effect
is the same as setting TR1 = 0. Timer 0 in mode 3 establishes TL0 and TH0 as two separate counters.
TL0 uses the timer 0 control bits: C/T, GATE, TR0, INT0, and TF0. TH0 is locked into a timer function
(counting machine cycles) and takes over the use of TR1 and TF1 from timer 1. Thus, TH0 now controls
the "timer 1" interrupt. Mode 3 is provided for applications requiring an extra 8-bit timer or counter. When
timer 0 is in mode 3, timer 1 can be turned on and off by switching it out of and into its own mode 3, or
can still be used by the serial channel as a baud rate generator, or in fact, in any application not requiring
an interrupt from timer 1 itself.
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| 73S1209F-68IM/F | POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 73S1209F-44IMR/F | POWER SUPPLY MANAGEMENT CKT, QCC44 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73S1209F-68M/F/P1 | 功能描述:8位微控制器 -MCU Contained 80515-SoC Serial Hst Interface 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 |
| 73S1209F-EB | 功能描述:開發(fā)板和工具包 - 8051 73S1209F Eval Brd (Doc. Cd, Cable) RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評(píng)估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 73S1209F-IM44 DK | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd |
| 73S1209F-IM44 EB | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Eval Brd Eval Bd Doc Cd Cable |
| 73S1209F-IM68 DK | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd |
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