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参数资料
| 型号： | M30620MAA-XXXGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100 |
| 文件页数： | 26/40页 |
| 文件大小： | 3893K |
| 代理商： | M30620MAA-XXXGP |
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Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Bus Control
29
Figure 1.9.2. Output Examples about Address Bus and Chip Select Signal (Separated Bus without
Wait)
Example 1) After access the external area, both the address signal and
the chip select signal change concurrently in the next cycle.
In this example, after access to the external area(i), an access to the area
indicated by the other chip select signal(j) will occur in the next cycle. In
this case, both the address bus and the chip select signal change between
the two cycles.
Note : These examples show the address bus and chip select signal within the successive two cycles.
According to the combination of these examples, the chip select can be elongated to over 2cycles.
BCLK
Read/Write
signal
Data bus
Address bus
Chip select
(CS i)
Access to the
External Area( i )
Chip select
(CS j)
Access to the Other
External Area( j )
Address
Data
Example 2) After access the external area, only the chip select signal
changes in the next cycle (the address bus does not change).
In this example, an access to the internal ROM or the internal RAM in the
next cycle will occur, after access to the external area. In this case, the
chip select signal changes between the two cycles, but the address does
not change.
Example 4) After access the external area, either the address signal and
the chip select signal do not change in the next cycle.
In this example, any access to any area does not occur in the next cycle
(either instruction prefetch does not occur). In this case,either the address
bus and chip select signal do not change between the two cycles.
Example 3) After access the external area, only the address bus changes
in the next cycle (the chip select signal does not change).
In this example, after access to the external area(i), an access to the area
indicated by the same chip select signal(i) will occur in the next cycle. In
this case, the address bus changes between the two cycles, but the chip
select signal does not change.
BCLK
Access to the
External Area
Internal ROM/RAM
Access
Read/Write
signal
Data bus
Address bus
Chip select
Address
Data
BCLK
Access to the
External Area
No Access
Read/Write
signal
Data bus
Address bus
Chip select
Address
Data
BCLK
Access to the
External Area( i )
Access to the Same
External Area( i )
Read/Write
signal
Data bus
Address bus
Chip select
(CS i)
Address
Data
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M30620MA-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY |
| M30620MA-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY |
| M30620MC-2F2FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30620MC-311FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30620MC-335GP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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