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參數(shù)資料
| 型號： | SH703600FG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 109K |
| 代理商： | SH703600FG |
PROTOCOL
Copyright 1999-2004 Semtech Corporation
SH703600 data sheet v1.02 (2004-10-28)
www.semtech.com
5
Serial transmissions are at the rate of 9600 Baud, 8 data bits, no parity,
least significant bit is transmitted first, idle/stop level is high (logical 1), start
bit level is low (logical 0), non-inverted data.
Within 5 ms after the power-up, the SH703600 sends a two-byte
identification string of 0xF9, 0xFB. These two bytes are transmitted only
once after each reset of the SH703600.
These two ID values also represent key release action in the locations
[Row=1, Column=15] and [Row=3, Column=15] on the key matrix. Since
the values of these bytes represent release action of the keys, extraneous
characters are never generated, even if synchronization between the driver
and the SH703600 is lost, or power fluctuations/erroneous resets are
applied to the SH703600. If logistics of the driver do not permit "shared"
use of the identification values 0xF9 and 0xFB, then the user is advised not
to incorporate keys in the locations [Row=1, Column=15] and
[Row=3, Column=15] for the key matrix design.
Subsequent single-byte transmissions indicate the row (0-7), column
(0-15), and press/release action for each change of the state of every key.
If (after the current key release) all of the keys on the key matrix are in the
released state, the last byte transmitted is transmitted again; this indicates
to the host driver that the keyboard is idle. In other words, when the host
driver receives two identical key-release bytes in succession, the keyboard
is known to be idle.
Byte Transmission
Bit Number
Comment
b7
0 for key press, 1 for key release
b6
Column location in the key matrix (0-15)
b5
b4
b3
b2
Row location in the key matrix (0-7)
b1
b0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SH7040 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2) |
| SH7040A | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2) |
| SH-7040MB | 制造商:COOPER 制造商全稱:Cooper Bussmann, Inc. 功能描述:ROTARY CODED SWITCHES SMD |
| SH-7040TB | 功能描述:SWITCH ROTARY GRAY 10POS SMD RoHS:是 類別:開關(guān) >> DIP 系列:SH-7000 特色產(chǎn)品:RDM Series Rotary DIP Switch 標(biāo)準(zhǔn)包裝:70 系列:RDM 電路:十六進(jìn)制 位置數(shù):16 觸點(diǎn)額定電壓:0.1A @ 42VDC 觸動器類型:用于工具旋轉(zhuǎn) 觸動器電平:凹槽式 安裝類型:通孔 方向:頂部觸動 可清洗:是 其它名稱:EG4977-5RDMAR16PIT |
| SH7041 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2) |
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