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參數(shù)資料
| 型號(hào)： | S1C6S460D |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, UUC124 |
| 封裝： | 4.69 X 4.68 MM, DIE-124 |
| 文件頁(yè)數(shù)： | 17/107頁(yè) |
| 文件大?。?/td> | 788K |
| 代理商： | S1C6S460D |
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S1C6S460 TECHNICAL MANUAL
EPSON
9
CHAPTER 2: CPU AND BUILT-IN MEMORY
2.2 Program Memory (ROM)
The built-in ROM, a mask ROM for loading the program, has a capacity of 6,144 steps
× 12 bits. The
program area is two banks, each of 16 (0–15) pages
× 256 (00H–FFH) steps. After initial reset, the program
beginning address is set to bank 0, page 1, step 00H. The interrupt vector is allocated to page 1 of each
bank, steps 02H–0CH.
Bank 0
Step 00H
Step 02H
Step 0CH
Step 0DH
Step FFH
12 bits
Program start address
Interrupt vector
Page 0
Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Bank 1
Step 00H
Step 02H
Step 0CH
Step 0DH
Step FFH
12 bits
Interrupt vector
Page 0
Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Fig. 2.2.1 Configuration of the built-in ROM
2.3 Data Memory (RAM)
The S1C6S460 built-in data memories are configured a general-purpose RAM, display data memory of
the LCD, and I/O data memory which controls the peripheral circuit.
General-purpose RAM: 640 words
× 4 bits (000H–27FH)
Display data memory: 160 words
× 4 bits (E00H–E4FH, E80H–ECFH)
I/O memory:
48 words
× 4 bits (F00H–F7EH)
During programming, take note of the following:
(1) Since the stack area is taken from the RAM area, take care that destruction of stack data due to data
writing does not occur. Sub-routine calls or interrupts consume 3 words of the stack area.
(2) RAM address 000H–00FH are memory register areas that are addressed with register pointer RP.
The memory map of the built-in data memory (RAM) and details of the I/O data memory map are shown
in Figure 2.3.1 and Tables 2.3.1(a)–(d), respectively.
Note: Memory is not mounted in unused area within the memory map and in memory area not indicated
in this chapter. For this reason, normal operation cannot be assured for programs that have been
prepared with access to these areas.
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