參數(shù)資料
型號: HD4046612
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算機)
中文描述: 低電壓如同在微機芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計算機)
文件頁數(shù): 84/142頁
文件大小: 894K
代理商: HD4046612
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PDF資料
PDF描述
HD40A46612 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD40A4668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD40A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD404668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD404669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
相關代理商/技術參數(shù)
參數(shù)描述
HD4046612H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD404668 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD404668H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD404669 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD404669H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit