- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377921 > MB90P678 (Fujitsu Limited) 16-Bit Proprietary Microcontroller(16位專用微控制器) PDF資料下載
參數(shù)資料
| 型號： | MB90P678 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-Bit Proprietary Microcontroller(16位專用微控制器) |
| 中文描述： | 16位微控制器專利（16位專用微控制器） |
| 文件頁數(shù)： | 36/111頁 |
| 文件大?。?/td> | 736K |
| 代理商： | MB90P678 |
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頁當(dāng)前第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頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁
MB90670/675 Series
36
I
PERIPHERALS
1. Parallel Ports
(1) I/O Ports
When not being used as output pins by their corresponding peripherals, all pins except for ports 5, 7 and 9 can
be individually specified for input or output by setting the corresponding location in the port direction register.
When reading a port data register during input, the value is always read as the pin level; when reading a port
data register during output, the value latched in the port data register is read. This also applies to the read portion
of a read-modify-write operation.
When reading a port data register used as a control output, the data being output as the control output is read,
regardless of the value of the port direction register.
If read-modify-write instructions (bit set instruction, etc.) are used to access this register, the bit that is the focus
of the instruction is set to the prescribed value, but the contents of the output register corresponding to any other
bits for which the input setting has been made are overwritten with the current input value of the corresponding
pin. Therefore, when switching a pin that was being used for input over to output, first write the desired value to
the port data register, and then write “1” to the port direction register.
Reading and writing an I/O port differs from reading and writing memory as follows:
Input mode
Reads: The read data is the level of the corresponding pin.
Writes: The write data is stored in the output latch. The data is not output to the pin.
Output mode
Reads: The read data is the value stored in the PDR.
Writes: The write data is both stored in the output latch and output to the pin.
Block Diagram
Port data register
Port direction register
Port data register read
Port data register write
Port direction register write
Port direction register read
Pin
I
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90800 | 16-bit Proprietary Microcontroller CMOS |
| MB90803 | 16-bit Proprietary Microcontroller CMOS |
| MB90803PF | 16-bit Proprietary Microcontroller CMOS |
| MB90803SPF | 16-bit Proprietary Microcontroller CMOS |
| MB90F804 | 16-bit Proprietary Microcontroller CMOS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90V340A-102CR | 制造商:FUJITSU 功能描述: |
| MB-910 | 制造商:Circuit Test 功能描述:BREADBOARD WIRING KIT - 350 PCS |
| MB9100100 | 制造商:COM/DUO 功能描述:FAN 4-6WKS |
| MB9100-100 | 制造商:COM/DUO 功能描述:FAN 4-6WKS |
| MB91101 | 制造商:Panasonic Industrial Company 功能描述:IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。