參數(shù)資料
型號(hào): S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 87/161頁
文件大?。?/td> 1037K
代理商: S1C621A0F0A0100
S1C621A0 TECHNICAL HARDWARE
EPSON
I-7
CHAPTER 2: CPU, ROM AND RAM
RAM
This RAM stores various data. It is also used as a stack
area from which subroutines are called or into which regis-
ters are saved. As the size of the RAM is 208 words
× 4 bits,
the stack area must be set at addresses up to CFH. (For the
RAM map, see section 3.1 "Memory Map".)
In programming the RAM, it is necessary that the data area
be separated from the stack area. (A stack area of 3 words
is needed for subroutine call, interrupt handling, etc.)
The RAM area at addresses from 00H to 0FH accommodates
memory registers which are addressed by the register
pointer RP.
2.3
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