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HD6473434F16 参数 Datasheet PDF下载

HD6473434F16图片预览
型号: HD6473434F16
PDF下载: 下载PDF文件 查看货源
内容描述: 12伏不能应用于S -掩模模型(单电源规格) ,因为这可能会永久损坏设备。 [12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.]
分类和应用: 外围集成电路微控制器可编程只读存储器时钟
文件页数/大小: 752 页 / 2557 K
品牌: HITACHI [ HITACHI SEMICONDUCTOR ]
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7.6  
Port 5  
7.6.1  
Overview  
Port 5 is a 3-bit input/output port that is multiplexed with input/output pins (TxD0, RxD0, SCK0) of  
serial communication interface 0. The port 5 pin functions are the same in all operating modes.  
Figure 7.13 shows the pin configuration of port 5.  
Pins in port 5 can drive one TTL load and a 30-pF capacitive load. They can also drive a  
darlington transistor.  
Port 5 pins  
P52 (input/output)/SCK0 (input/output)  
Port 5  
P51 (input/output)/RxD0 (input)  
P50 (input/output)/TxD0 (output)  
Figure 7.13 Port 5 Pin Configuration  
7.6.2  
Register Configuration and Descriptions  
Table 7.10 summarizes the port 5 registers.  
Table 7.10 Port 5 Registers  
Name  
Abbreviation  
P5DDR  
Read/Write  
Initial Value  
H'F8  
Address  
H'FFB8  
H'FFBA  
Port 5 data direction register  
Port 5 data register  
W
P5DR  
R/W  
H'F8  
126  
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