參數(shù)資料
型號: HCD404669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 84/142頁
文件大?。?/td> 894K
代理商: HCD404669
HD404669 Series
84
Transmit Clock Error Detection (In External Clock Mode):
The serial interface will malfunction if a
spurious pulse caused by external noise conflicts with a normal transmit clock during transfer. A transmit
clock error of this type can be detected as shown in figure 61. If more than eight transmit clocks are input
in transfer state, at the eighth clock including a spurious pulse by noise, the octal counter reaches 000, the
serial 1 interrupt request flag (IFS1: $003, bit 2) is set, and transmit clock wait state is entered. At the
falling edge of the next normal clock signal, the transfer state is entered.
Meanwhile, in the interrupt handling routine, transfer end processing is performed, the serial 1 interrupt
request flag is reset, and a dummy write is performed to serial mode register 1A (SM1A: $005). The serial
interface then returns to the STS wait state, and the serial 1 interrupt request flag (IFS1: $003, 2) is set
again. It is therefore possible to detect a serial clock error by testing the serial 1 interrupt request flag after
the dummy write to serial mode register 1A.
相關(guān)PDF資料
PDF描述
HCD404868 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HCD404878 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HCD404889 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HCD404899 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HCD40C4082 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HCD404889 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Low-Voltage AS Microcomputers with On-Chip LCD Circuit
HCD40C4344R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit microcomputers
HCD44780UA00 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot Matrix Liquid Crystal Display Controller/Driver
HCD44780UA02 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot Matrix Liquid Crystal Display Controller/Driver
HCD44780UBXX 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot Matrix Liquid Crystal Display Controller/Driver