參數(shù)資料
型號： M30102M3-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù)： 81/166頁
文件大?。?/td> 2060K
代理商： M30102M3-XXXFP
Bus Control
Under
development
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
18
Bus Control
During access, the memory areas (ROM, RAM, FLASH, etc.) and the SFR area have different bus cycles.
As shown in Table 1.7.1, memory areas can be accessed in one cycle of the CPU operation clock BCLK.
The SFR area can be accessed in two cycles of BCLK.
The memory areas and the SFR area also have different bus widths. The memory areas have a 16-bit bus
width, while the SFR area has an 8-bit bus width. Consequently, different operations are used when the
areas are accessed in word (16 bits) units. Table 1.7.2 shows the bus cycles that are necessary to access
the SFR area and the memory areas.
Area
Even address
byte access
BCLK
Data
BCLK
Address
SFR area
Memory area
Even
Odd
Data
Word
Data
Odd
Odd+1
Odd
Odd+1
Even
Even+1
Even/even+1
Data
Address
Data
Address
Data
Address
Data
Address
Data
Address
Data
Address
Data
Address
Add address
byte access
Even address
word access
Add address
word access
0000016
XXXXX16
FFFFF16
0040016
YYYYY16
Internal ROM area
SFR area
(For details, see
Figures 1.6.1 and 1.
6.2)
Internal RAM area
SFR area
Memory area
Table 1.7.1. Bus cycles for access areas
Area
Bus cycle
SFR
2 BCLK cycles
Internal ROM/RAM
1 BCLK cycles
Figure 1.7.1. SFR area and memory areas
Table 1.7.2. Cycles for access areas
相關(guān)PDF資料
PDF描述
M30100M2T-XXXFP 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP32
M30102M3T-XXXFP 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP48
M30100M2-XXXFP 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP32
M30100F3TFP 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32
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