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| 型號： | HD404369F |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-Series microcomputer |
| 中文描述： | 4位HMCS400系列微機 |
| 文件頁數(shù)： | 74/115頁 |
| 文件大?。?/td> | 452K |
| 代理商： | HD404369F |
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HD404369 Series
74
I
÷
2
÷
8
÷
3
÷
1
÷
5
÷
2
Port mode
register C
(PMRC)
SCK
Selector
System
clock
PER
Prescaler S (PSS)
Idle
controller
3
Serial mode
register
(SMR)
Clock
Serial data
register (SR)
Serial interrupt
request flag
(IFS)
S
1/2
1/2
SI
SO
Octal
counter (OC)
I/O
controller
Transfer
control
signal
Figure 58 Serial Interface Block Diagram
Serial Interface Operation
Selecting and Changing the Operating Mode:
Table 27 lists the serial interface’s operating modes. To
select an operating mode, use one of these combinations of port mode register A (PMRA: $004) and the
serial mode register (SMR: $005) settings; to change the operating mode, always initialize the serial
interface internally by writing data to the serial mode register. Note that the serial interface is initialized by
writing data to the serial mode register. Refer to the following Serial Mode Register section for details.
Pin Setting:
The R0
0
/
SCK
pin is controlled by writing data to the serial mode register (SMR: $005). The
R0
1
/SI and R0
2
/SO pins are controlled by writing data to port mode register A (PMRA: $004). Refer to the
following Registers for Serial Interface section for details.
Transmit Clock Source Setting:
The transmit clock source is set by writing data to the serial mode
register (SMR: $005) and port mode register C (PMRC: $025). Refer to the following Registers for Serial
Interface section for details.
Data Setting:
Transmit data is set by writing data to the serial data register (SRL: $006, SRU, $007).
Receive data is obtained by reading the contents of the serial data register. The serial data is shifted by the
transmit clock and is input from or output to an external system.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD404369H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer has an A/D converter |
| HD404369S | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer |
| HD404369SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HD404372 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HMCS43XXFamily User＇s Manual/Device |
| HD404372FT | 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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