參數(shù)資料
型號： ML64P168-NGA
廠商： LAPIS SEMICONDUCTOR CO LTD
元件分類： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, 0.7 MHz, MICROCONTROLLER, PQFP80
封裝： 14 X 14 MM, 0.65 MM PITCH, PLASTIC, QFP-80
文件頁數(shù)： 7/52頁
文件大?。?/td> 336K
代理商： ML64P168-NGA
FEDL64P168-02
Semiconductor
ML64P168
14/51
Data Memory
The data memory area consists of 8 banks and each bank has 256 nibbles ( 256
× 4 bits ).
The data RAM is assigned to BANK 6, BANK 7 and peripheral ports are assigned to BANK 0.
BANK7
Data RAM area
( 256 nibbles )
BANK0
Inaccessible area
Unused area
7FFH
780H
700H
6FFH
100H
0FFH
080H
07FH
000H
SFR area
Contents of 000H to 07FH
07FH
000H
Data / Stack area ( 128 nibbles )
BANK6
Data RAM area
( 256 nibbles )
4 bits
512 nibbles
600H
Data Memory Map
Half the BANK 7 of Data RAM area ( 128 nibbles ) is shared by the stack area. The stack is a memory
starting from address 7FFH toward the low-order addresses where 4 nibbles are used by Subroutine
Call Instruction and 8 nibbles are used by an interrupt.
The addresses 080H to 0FFH of BANK 0 are not assigned as the data memory, so access to these
addresses has no effect. Moreover, it is impossible to access BANK 1 to BANK 5.
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