- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370461 > HD40L4816 (Hitachi,Ltd.) 4-Bit Single-Chip Microcomputer(4位單片微計算機) PDF資料下載
參數(shù)資料
| 型號： | HD40L4816 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-Bit Single-Chip Microcomputer(4位單片微計算機) |
| 中文描述： | 4位單片機（4位單片微計算機） |
| 文件頁數(shù)： | 60/98頁 |
| 文件大?。?/td> | 621K |
| 代理商： | HD40L4816 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁當前第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁
HD404818 Series
60
Registers for Serial Interface
Serial Mode Register (SMR: $005):
The 4-bit write-only serial mode register controls the R0
0
/
SCK
,
prescaler divide ratio, and transmit clock source (table 26, figure 32).
A write signal to the serial mode register controls the internal state of the serial interface.
A write signal to the serial mode register stops the serial data register and octal counter from applying the
transmit clock, and it also resets the octal counter to $0 simultaneously. Therefore, when the serial interface
is in the transfer state, a write signal causes the serial mode register to cease the data transfer and to set the
serial interrupt request flag.
Data in the serial mode register will change in the second instruction cycle after a write instruction to the
serial mode register. Therefore, it is required to execute the STS instruction after the data in the serial mode
register has been changed completely. The serial mode register will be reset to $0 by MCU reset.
Serial Data Register (SRL: $006, SRU: $007):
The 8-bit read/write serial data register consists of low-
order digits (SRL: $006) and high-order digits (SRU: $007).
The data in the serial data register will be output from the SO pin LSB first synchronously with the falling
edge of the transmit clock signal. At the same time, external data will be input from the SI pin to the serial
data register synchronously with the rising edge of the transmit clock. Figure 33 shows the I/O timing chart
for the transmit clock signal and the data.
The read/write operation of the serial data register should be performed after the completion of data
transmit/receive. Otherwise, data accuracy cannot be guaranteed.
Table 26 Serial Mode Register
SMR3
R0
0
/
SCK
Used as R0
0
port input/output pin
Used as
SCK
input/output pin
0
1
Transmit Clock
SMR2 SMR1 SMR0 R0
0
/
SCK
Port Clock Source Prescaler Divide Ratio System Clock Divide Ratio
0
0
0
SCK
/output
Prescaler
SCK
/output
Prescaler
SCK
/output
Prescaler
SCK
/output
Prescaler
SCK
/output
Prescaler
SCK
/output
Prescaler
SCK
/output
System clock
SCK
/input
External clock —
÷
2048
÷
512
÷
128
÷
32
÷
8
÷
2
÷
4096
÷
1024
÷
256
÷
64
÷
16
÷
4
÷
1
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
—
1
1
1
—
相關PDF資料 |
PDF描述 |
|---|---|
| HD40L4818 | 4-Bit Single-Chip Microcomputer(4位單片微計算機) |
| HD404816 | 4-Bit Single-Chip Microcomputer(4位單片微計算機) |
| HD404814FS | 16-digit LCD driver |
| HD4074899 | 16-digit LCD driver |
| HD404814H | 16-digit LCD driver |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD40L4818H | 制造商:Renesas Electronics Corporation 功能描述: |
| HD40-M | 制造商:Tamura Corporation of America 功能描述: |
| HD40WS/EHOOD/PLUG | 制造商:Lapp 功能描述:HD 40 way side entry assembled plug 制造商:Lapp Group 功能描述:HD 40 way side entry assembled plug |
| HD-41494-1 | 功能描述:環(huán)形MIL規(guī)格工具、五金與附件 RoHS:否 制造商:Amphenol Industrial MIL 類型:MIL-DTL-5015 系列:97 產(chǎn)品類型:Dummy Receptacles 用于:97 Series Plugs |
| HD4-15530/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Encoder/Decoder |
發(fā)布緊急采購，3分鐘左右您將得到回復。