參數(shù)資料
型號(hào)： HD4074629
廠商： Hitachi,Ltd.
英文描述： AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
中文描述： 由于微機(jī)安裝有雙音多頻發(fā)電機(jī)斷路器（微計(jì)算機(jī)帶雙音多頻發(fā)生器電路）
文件頁數(shù)： 92/155頁
文件大小： 549K
代理商： HD4074629
HD404629R Series
92
Bit
Initial value
Read/Write
Bit name
3
—
—
Not used
2
—
—
Not used
0
0
W
SMRB0
1
Undefined
W
SMRB1
SMRB0
0
1
Transmit clock division ratio
Prescaler output divided by 2
Prescaler output divided by 4
Serial mode register B (SMRB: $028)
SMRB1
0
1
Output level control in idle states
Low level
High level
Figure 75 Serial Mode Register B (SMRB)
Serial Data Register (SRL: $006, SRU: $007):
This register has the following functions (figures 76 and
77).
Transmission data write and shift
Receive data shift and read
Writing data in this register is output from the SO pin, LSB first, synchronously with the falling edge of the
transmit clock; data is input, LSB first, through the SI pin at the rising edge of the transmit clock.
Input/output timing is shown in figure 78.
Data cannot be read or written during serial data transfer. If a read/write occurs during transfer, the
accuracy of the resultant data cannot be guaranteed.
Bit
Initial value
Read/Write
Bit name
3
Undefined
R/W
SR3
2
Undefined
R/W
SR2
0
Undefined
R/W
SR0
1
Undefined
R/W
SR1
Serial data register (lower digit) (SRL: $006)
Figure 76 Serial Data Register (SRL)
相關(guān)PDF資料
PDF描述
HD404629R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD404638R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
HD40A4638R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
HD40A4639R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
HD404639R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4074629F 制造商:Renesas Electronics Corporation 功能描述:
HD4074629FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074629H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074629TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074654 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
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