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7905 参数 Datasheet PDF下载

7905图片预览
型号: 7905
PDF下载: 下载PDF文件 查看货源
内容描述: 16位单片机 [16-BIT SINGLE-CHIP MICROCOMPUTER]
分类和应用: 计算机
文件页数/大小: 565 页 / 3295 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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DEBUG FUNCTION  
17.4 Out-of-address-area detection mode  
17.4 Out-of-address-area detection mode  
When the contents of PG and PC go out of the range of the specified area, an address matching detection  
interrupt request occurs.  
17.4.1 Setting procedure for out-of-address-area detection mode  
Figure 17.4.1 shows an initial setting example for registers relevant to the out-of-address-area detection  
mode.  
Disables interrupts.  
The interrupt disable flag (I) is set to 1.”  
Selection of detect condition  
b7  
b0  
b7  
b0  
Debug control register 1 (Address 6716  
)
0
0
0
0
0
1
0
1
Debug control register 0 (Address 6616  
)
Address compare register access enable bit  
(Note 1)  
0 : Disabled.  
Selection of out-of-address-area detection  
Detect enable bit  
0 : Detection disabled.  
Set the detect enable bit to 1.”  
b7  
b0  
Processing for setting of address compare registers  
Debug control register 0 (Address 6616  
)
1
b7  
b0  
Detect enable bit  
1 : Detection enabled.  
1
1
Debug control register 1 (Address 6716  
)
Address compare register access enable bit  
(Note 1)  
1 : Enabled.  
Clear the interrupt disable flag (I) to
0(Note 2).  
Setting of address compare registers  
b23  
b
0
Address compare register 0  
(Addresses 6A16 to 6816  
)
Detection starts  
The start address of the programming  
area is set here.  
b23  
b
0
Notes 1: Be sure to set this bit to 1immediately before reading from or  
writing to the address compare registers 0, 1. Then, be sure to  
clear this bit to 0immediately after this reading or writing.  
2: This processing is unnecessary when no maskable interrupt is  
used.  
Address compare register 1  
(Addresses 6D16 to 6B16  
)
The last address of the programming  
area is set here.  
Fig. 17.4.1 Initial setting example for registers relevant to out-of-address-area detection mode  
7905 Group Users Manual Rev.1.0  
17-10  
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