參數(shù)資料
型號(hào)： HD4074849TF
廠商： Hitachi,Ltd.
元件分類： 其它接口
英文描述： TERMINAL
中文描述： IGBT模塊
文件頁數(shù)： 82/125頁
文件大?。?/td> 471K
代理商： HD4074849TF
HD404849 Series
82
Operating States:
The serial interface has the following operating states; transitions between them are
shown in figure 67.
STS wait state
Transmit clock wait state
Transfer state
Continuous clock output state (only in internal clock mode)
STS wait state: The serial interface enters STS wait state by MCU reset (00, 10 in figure 67). In STS
wait state, the serial interface is initialized and the transmit clock is ignored. If the STS instruction is
then executed (01, 11), the serial interface enters transmit clock wait state.
Transmit clock wait state: Transmit clock wait state is the period between the STS execution and the
falling edge of the first transmit clock. In transmit clock wait state, input of the transmit clock (02, 12)
increments the octal counter, shifts the serial data register, and puts the serial interface in transfer state.
However, note that if clock continuous output mode is selected in internal clock mode, the serial
interface does not enter transfer state but enters clock continuous output state (17).
The serial interface enters STS wait state by writing data to serial mode register A (SMRA: $005) (04,
14) in transmit clock wait state.
Transfer state: Transfer state is the period between the falling edge of the first clock and the rising edge
of the eighth clock. In transfer state, the input of eight clocks or the execution of the STS instruction
sets the octal counter to 000, and the serial interface enters another state. When the STS instruction is
executed (05, 15), transmit clock wait state is entered. When eight clocks are input, transmit clock wait
state is entered (03) in external clock mode, and STS wait state is entered (13) in internal clock mode.
In internal clock mode, the transmit clock stops after outputting eight clocks.
In transfer state, writing data to serial mode register A (SMRA: $005) (06, 16) initializes the serial
interface, and STS wait state is entered.
If the state changes from transfer to another state, the serial interrupt request flag (IFS: $023, bit 2) is set
by the octal counter that is reset to 000.
Clock continuous output state (only in internal clock mode): Clock continuous output state is entered
only in internal clock mode. In this state, the serial interface does not transmit/receive data but only
outputs the transmit clock from the
SCK
pin.
When bits 0 and 1 (PMRA0, PMRA1) of port mode register A (PMRA: $004) are 00 in transmit clock
wait state and if the transmit clock is input (17), the serial interface enters clock continuous output state.
If serial mode register A (SMRA: $005) is written to in clock continuous output mode (18), STS wait
state is entered.
相關(guān)PDF資料
PDF描述
HD404864 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HD4074869 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HD4074889 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HD404868 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HD404874 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4074889 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
HD4074889H 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
HD4074889TE 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
HD4074899 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:16-digit LCD driver
HD407629FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
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