GMS34004TW データシートの表示（PDF） - Unspecified
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GMS34004TW Datasheet PDF : 49 Pages
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CHAPTER 2. Architecture
Chapter 2. Architecture
BLOCK DESCRIPTION
Program Memory (EPROM)
The GMS34XXXT series 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.
Program capacity (pages)
0
8
1
2
3
4
5
6
7
Page 0
Page 1 Page 2
Page 15
63
0
A0~A5
Program counter (PC)
1
2
15
A6~A9
Page address register (PA)
4
Page buffer (PB)
6
4
(SR)
Stack register
(PSR)
(Level "1")
(Level "2")
(Level "3")
Fig 2-1 Configuration of Program Memory
2- 1
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