參數(shù)資料
型號： MCP2140DM-TMPSNS
廠商： Microchip Technology
文件頁數(shù)： 4/58頁
文件大小： 0K
描述： BOARD DEMO FOR MCP2140
產(chǎn)品培訓(xùn)模塊： PIC18 J Series MCU Overview
標(biāo)準(zhǔn)包裝： 1
主要目的： 接口，IrDA
嵌入式： 是，MCU，8 位
已用 IC / 零件： MCP2140
主要屬性： 帶 PIC18F MCU 和溫度傳感器的 IrDA 控制器
次要屬性： 設(shè)置為數(shù)據(jù)記錄器
已供物品： 板，軟件
產(chǎn)品目錄頁面： 685 (CN2011-ZH PDF)
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MCP2140AT-I/SSTR-ND - IC IRDA CONTROLLR DTE/DCE 20SSOP
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MCP2140-I/SO-ND - IC IRDA CONTROLLR DTE/DCE 18SOIC
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其它名稱： MCP2140DM-TMPSNSR
MCP2140DM-TMPSNSR-ND
MCP2140
DS21790A-page 12
Preliminary
2003 Microchip Technology Inc.
2.5.2
DECODER (DEMODULATION)
The modulated signal (data) from the IR transceiver
module (on RXIR pin) needs to be demodulated to
form the received data (on RX pin). Once demodula-
tion of the data byte occurs, the data that is received is
transmitted by the MCP2140 UART (on the RX pin).
Figure 2-6 shows the decoding of the modulated
signal.
Each bit time is comprised of 16-bit clocks. If the value
to be received is a logic-low, the RXIR pin will be a low
level for the first 3-bit clock cycles, or a minimum of
1.6 s. The remaining 13-bit clock cycles (or difference
up to the 16-bit clock time) will be high. If the value to
be received is a logic-high, the RXIR pin will be a high
level for the entire 16-bit clock cycles. The level on the
RX pin will be in the appropriate state for the entire 16
clock cycles.
2.6
IR Port Baud Rate
The baud rate for the MCP2140 IR port (the TXIR and
RXIR pins) is fixed at the default rate of 9600 baud. The
Primary device will be informed of this parameter dur-
ing NDM. The Host UART baud rate and the IR port
baud rate are the same.
FIGURE 2-6:
DECODING
Note:
The signal on the RX pin does not actually
line up in time with the bit value that was
received on the RXIR pin, as shown in
Figure 2-6. The RXIR bit value is shown to
represent the value to be transmitted on
the RX pin.
BITCLK
RX
RXIR Bit Value
01
0
1
≥ 1.6 s (up to 3 CLK)
≥ 13 CLK
16 CLK
Start Bit
Data bit 0
Data bit 1
Data bit 2
Data bit ...
(CLK)
RXPD
RXPDREF
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參數(shù)描述
MCP2140-I/P 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 9600bd fixd spd IrDA RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCP2140-I/P 制造商:Microchip Technology Inc 功能描述:IrDA Protocol Handler Communication IC
MCP2140-I/SO 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 9600bd fixd spd IrDA RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCP2140-I/SO 制造商:Microchip Technology Inc 功能描述:IrDA Protocol Handler Communication IC
MCP2140-I/SS 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 9600bd fixd spd IrDA RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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