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參數(shù)資料
| 型號(hào)： | C515C-LM |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁(yè)數(shù)： | 37/96頁(yè) |
| 文件大?。?/td> | 1285K |
| 代理商： | C515C-LM |
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C515C
Data Sheet
33
2003-02
Port Structure Selection of Port 5
After a reset operation of the C515C, the quasi-bidirectional 8051-compatible port
structure is selected. For selection of the bidirectional (CMOS) port 5 structure the bit
PMOD of SFR SYSCON must be set. Because each port 5 pin can be programmed as
an input or an output, additionally, after the selection of the bidirectional mode the
direction register DIR5 of port 5 must be written. This direction register is mapped to the
port 5 register. This means, the port register address is equal to its direction register
address.
Figure 10
illustrates the port and direction register configuration.
Figure 10
Port Register, Direction Register
MCS02649
D
R
Q
Q
Int. Bus, Bit 7
Write to IP 1
Delay:
2.5 Machine Cycles
Port Register
Direction Register
Enable
PDIR
Enable
Write to Port
Read Port
Internal
Bus
Instruction sequence for the programming of the direction registers:
ORL IP1, #80H ; Set bit PDIR
#OYYH
DIRx,
MOV
Write port x direction register with value YYH
;
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相關(guān)代理商/技術(shù)參數(shù) |
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| C515-LN | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515-LN/1RN | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515S-250MA | 制造商:COOPER BUSSMANN 功能描述:Fuse 0.25A 250V Slow Blow 2-Pin Axial Through Hole |
| C515S-2A | 制造商:Cooper Bussmann 功能描述: |
| C515S-375-R | 制造商:Cooper Bussmann 功能描述: |
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