參數(shù)資料
型號(hào): HMS38112
廠商: Electronic Theatre Controls, Inc.
英文描述: 4-BIT SINGLE CHIP MICROCOMPUTERS
中文描述: 4位單片機(jī)微機(jī)
文件頁(yè)數(shù): 29/73頁(yè)
文件大?。?/td> 505K
代理商: HMS38112
3-1
CHAPTER 3. Architecture
Program Memory
The HMS38112/39112 can incorporate maximum 1,024 words (64 words
16
pages
8bits) for program memory. Program counter PC (A0~A5) and page
address register (A6~A9) are used to address the whole area of program memory
having an instruction (8bits) to be next executed.
The program memory consists of 64 words on each page, and thus each page
can hold up to 64 steps of instructions.
The program memory is composed as shown below.
Chapter 3. Architecture
Fig 3-1 Configuration of Program Memory
7
Program counter (PC)
Page address register (PA)
Page buffer (PB)
6
4
(Level "1")
(Level "2")
(Level "3")
(PSR)
(SR)
Stack register
A0~A5
0
1
2
15
A6~A9
Program capacity (pages)
4
0123456
8
Page 0
6
Page 15
Page 1
Page 2
63
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