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參數(shù)資料
| 型號： | M32000D4BFP-80 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Single Chip 32 Bits Microcomputer(32位 單片機) |
| 中文描述： | 32位單片微機（32位單片機） |
| 文件頁數(shù)： | 21/44頁 |
| 文件大?。?/td> | 448K |
| 代理商： | M32000D4BFP-80 |
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SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
M32000D4BFP-80
21
Fig. 18 Automatic idle cycle insertion between consecutive read
and write cycles
When an "L" level is input to DC, the next bus cycle is processed and
wait cycles are inserted until this point. When a write cycle comes
immediately after a read cycle, the M32000D4BFP-80 inserts an idle
cycle to prevent a collision with data on the system bus. The same
applies to write cycles (burst write access) immediately after a burst
read cycle.
Fig. 17 Read/write timing (two one-wait accesses)
"H"
"H"
idle
read
CLKIN
BS
A8 - A30
SID, ST
BCH, BCL
BURST
D0 - D15
DC
R/W
idle
read
"H"
idle
write
idle
write
CLKIN
BS
A8 - A30
SID, ST
BCH, BCL
BURST
D0 - D15
DC
R/W
"Hi-Z"
"Hi-Z"
"Hi-Z"
"Hi-Z"
"Hi-Z"
Note:
"Hi-Z" means high-impedance, and indicates sampling timing.
Keep DC signal at the "H" level when waits are inserted.
"H"
idle
CLKIN
BS
A8 - A30
SID, ST
BCH, BCL
BURST
D0 - D15
DC
R/W
idle
read
write
idle
"Hi-Z"
"Hi-Z"
"Hi-Z"
Note:
"Hi-Z" means high-impedance, and indicates sampling timing.
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