參數(shù)資料
型號(hào): S3C70F2XX-SO
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO32
封裝: 0.450 INCH, SOP-32
文件頁(yè)數(shù): 57/179頁(yè)
文件大?。?/td> 1070K
代理商: S3C70F2XX-SO
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ADDRESS SPACES
S3C70F2/C70F4/P70F4
2-2
GENERAL-PURPOSE MEMORY AREAS
The 16-byte area at ROM locations 0010H–001FH and the 3968-byte area at ROM locations 0080H–0FFFH are
used as general-purpose program memory.
You can also use vacant locations in the vector address area and REF instruction look-up table areas as general-
purpose program memory. But please be careful not to overwrite live data when writing programs that use
special-purpose areas of the ROM.
VECTOR ADDRESS AREA
Use the 16-byte vector address area of the ROM to store the vector addresses for executing
system resets and
interrupts. The starting addresses of interrupt service routines are stored in this area, along with the enable mem-
ory bank (EMB) and enable register bank (ERB) flag values that are needed to set EMB and ERB's initial values
for the service routines. A 16-byte vector address is organized as follows:
EMB
ERB
0
PC11
PC10
PC9
PC8
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
To set up the vector address area for specific programs, you use the instruction VENTn. The programming tips
on the next page explain how to do this.
相關(guān)PDF資料
PDF描述
S3C70F4XX-AV 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP30
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