參數(shù)資料
型號: M34570EDFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36
文件頁數(shù): 56/69頁
文件大小: 687K
代理商: M34570EDFP
Under
development
Preliminary Specifications REV.1.02
Specifications in this manual are tentative and subject to change.
Mitsubishi Microcomputers
M32C/83 group
SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
60
Bus
Figure 1.7.4. External Bus Operation with Software Wait (1)
Output
Input
Address
Bus cycle 1
(2) Separate bus with 1 wait
BCLK
Read signal
Write signal
Data bus
Address bus 2
Chip-select 2, 3
BCLK
Read signal
Data bus
Chip-select 2, 3
Data output
Address
Address bus 2
Address
Input
(3) Separate bus with 2 waits
Write signal
BCLK
Read signal
Write signal
Address bus 2
Address
Bus cycle 1
(1) Separate bus with no wait
Output
Data bus
Chip-select 2, 3
Input
Bus cycle 1
Address
Notes :
1. This timing illustrates bus cycle length. Read cycle and write cycle may occur consecutively.
2. Address bus and chip-select signal may be output longer depending on CPU status such as an
instruction queue buffer.
3. When accessing the same external space (same CS space) consecutively, the chip-select may be
output consecutively.
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