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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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Section 5 Wait-State Controller  
5.1  
Overview  
The H8/3437 Series has an on-chip wait-state controller that enables insertion of wait states into  
bus cycles for interfacing to low-speed external devices.  
5.1.1  
Features  
Features of the wait-state controller are listed below.  
Three selectable wait modes: programmable wait mode, pin auto-wait mode, and pin wait  
mode  
Automatic insertion of zero to three wait states  
5.1.2  
Block Diagram  
Figure 5.1 shows a block diagram of the wait-state controller.  
Wait request  
signal  
Wait-state controller  
WAIT  
(WSC)  
WSCR  
Legend:  
WSCR: Wait-state control register  
Figure 5.1 Block Diagram of Wait-State Controller  
83  
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