参数资料
型号: MB90488BPFV
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-100
文件页数: 106/124页
文件大小: 1547K
代理商: MB90488BPFV
MB90480B/485B Series
82
23. Address Match Detection Function
When the address is equal to a value set in the address detection register, the instruction code loaded into the
CPU is replaced forcibly with the INT9 instruction code (01H). As a result, when the CPU executes a set instruction,
the INT9 instruction is executed. Processing by the INT#9 interrupt routine allows the program patching function
to be implemented.
Two address detection registers are supported. An interrupt enable bit is prepared for each register. If the value
set in the address detection register matches an address and if the interrupt enable bit is set at “1”, the instruction
code loaded into the CPU is replaced forcibly with the INT9 instruction code.
(1) Register List
Program address detection register 0 (PADR0)
76
54
3
2
10
Initial value
XXXXXXXX B
R/W : Readable and writable
X
: Undefined
RESV : Reserved bit
Address
PADR0 (Low order address) : 001FF0H
R/W
76
54
3
2
10
Initial value
XXXXXXXX B
Address
PADR0 (Middle order address) : 001FF1H
R/W
76
54
3
2
10
Initial value
XXXXXXXX B
Address
PADR0 (High order address) : 001FF2H
R/W
76
54
3
2
10
Initial value
XXXXXXXX B
Address
PADR1 (Low order address) : 001FF3H
R/W
76
54
3
2
10
Initial value
XXXXXXXX B
Address
PADR1 (Middle order address) : 001FF4H
R/W
76
54
3
2
10
Initial value
XXXXXXXX B
Address
PADR1 (High order address) : 001FF5H
R/W
76
54
3
2
10
Initial value
00000000 B
Address
00009EH
R/W
Program address detection register 1 (PADR1)
Program address detection control status register (PACSR)
RESV
AD1E
RESV
AD0E
RESV
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