參數(shù)資料
型號(hào)： UPD789122UC-XXX-5A4
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, MICROCONTROLLER, PDSO30
封裝： 0.300 INCH, SHRINK, PLASTIC, SOP-30
文件頁(yè)數(shù)： 7/54頁(yè)
文件大小： 481K
代理商： UPD789122UC-XXX-5A4
Data Sheet U13025EJ2V0DS00
13
PD789121, 789122, 789124, 789131, 789132, 789134
4. MEMORY SPACE
Figure 4-1 shows the memory map of the
PD789121, 789122, 789124, 789131, 789132, and 789134.
Figure 4-1. Memory Map
Special function registers
256
× 8 bits
Internal high-speed RAM
256
× 8 bits
Reserved
Program memory
space
Data memory space
Program area
CALLT table area
Vector table area
Internal ROMNote
FFFFH
FF00H
FEFFH
FE00H
FDFFH
nnnnH
0080H
007FH
0040H
003FH
0016H
0015H
0000H
nnnnH
nnnnH+1
Note
The internal ROM capacity depends on the product. (See the following table).
Part Number
Last Address of Internal ROM
nnnnH
PD789121, 789131
07FFH
PD789122, 789132
0FFFH
PD789124, 789134
1FFFH
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