參數(shù)資料
型號: μPD784225Y
廠商: NEC Corp.
英文描述: 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
中文描述: 16位單片機(jī)微控制器(16位單片微控制器)
文件頁數(shù): 53/68頁
文件大小: 278K
代理商: ΜPD784225Y
53
μ
PD784224Y, 784225Y
12. ROM CORRECTION
ROM correction is a function to replace part of the program in the internal ROM with a program in the internal
RAM.
By using the ROM correction function, instruction bugs found in the internal ROM can be avoided or the flow of
the program can be changed.
ROM correction can be used at up to four places in the internal ROM (program).
FikHe 12-1. Block Diagram of ROM Correction
CORENn CORCHm
Program counter (PC)
Comparator
Correction address pointer n
Correction address registers
(CORAH, CORAL)
Coincidence
Correction branch processing
request signal
(CALLT instruction)
Internal bus
ROM correction control register (CORC)
Remark
n = 0 to 3, m = 0 or 1
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