參數(shù)資料
型號(hào)： ST7FLCD1G9M1
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO28
封裝： ROHS COMPLIANT, SO-28
文件頁數(shù)： 83/96頁
文件大小： 846K
代理商： ST7FLCD1G9M1
Infrared Preprocessor (IFR)
ST7FLCD1
The IFR input signal is preprocessed by a spike filter. This filter removes all pulses with a positive
level that lasts less than 2 s or 160 s, depending on the FLSEL bit. The negative level can be of
any duration and is never filtered out.
Note:
If the interrupt is enabled but no signal is detected, an interrupt occurs every 20.4 ms.
15.3
Register Description
INFRA RED DATA REGISTER (IFRDR)
Read/Write
Reset Value: (00h)
Bits [7:0] = IR[7:0] Infra red pulse width
The 8-bit counter value is transferred in this register when an expected edge occurs on the IFR pin
or when the counter overflows. A write to this register resets the internal overflow flag.
INFRA RED CONTROL REGISTER (IFRCR)
Read/Write
Reset Value: (00h)
Bits [7:5] = Reserved. Forced by hardware to 0.
Bit 4 = ITE Interrupt enable
0
Interrupt disabled
1
Interrupt enabled. It is generated when an edge (falling and/or rising depending on bits POSED
and NEGED) occurs or after a counter overflow.
Bit 3 = FLSEL Spike filter pulse width selection
0
Filter positive pulses narrower than 2 s
1
Filter positive pulses narrower than 160 s
Bits [2:1] = POSED, NEGED Edge selection for the duration measurement
Bit 0 = Reserved. Forced by hardware to 0.
765
432
10
IR7
IR6
IR5
IR4
IR3
IR2
IR1
IR0
765
432
10
0
ITE
FLSEL
POSED
NEGED
0
Table 30: Duration Measurement
POSED
NEGED
Count latch at...
0
When count reaches 255
0
1
Negative transition of IFR or when count reaches 255
1
0
Positive transition of IFR or when count reaches 255
1
Positive or negative transition of IFR or when count reached 255
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST7FLI15BF1U6 功能描述:8位微控制器 -MCU 8-Bit MCU w/ Single Volt Flash 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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ST7FLI19BF1U6TR 功能描述:8位微控制器 -MCU 8-Bit MCU w/ Single Volt Flash 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
ST7FLI19BY1M3TR 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
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