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参数资料
| 型号： | M38749E7T-XXXGP |
| 厂商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 单芯片8位CMOS微机 |
| 文件页数： | 47/92页 |
| 文件大小： | 1292K |
| 代理商： | M38749E7T-XXXGP |
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47
3874 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
When the internal synchronous clock is selected, in the 8-bit serial
I/O mode and the automatic transfer serial I/O mode (S
BUSY3
out-
put function outputs in 1-byte units), the S
BUSY3
output goes to “L”
and the S
BUSY3
output goes to “H” before 0.5 cycle (transfer clock)
of the timing at which the transfer clock from the S
CLK3
output
goes to “L” at a start of transmit/receive operation.
In the automatic transfer serial I/O mode (the S
BUSY3
output func-
tion outputs all transfer data), the S
BUSY3
output goes to “L” and
the S
BUSY3
output goes to “H” when the first transmit data is writ-
ten into the serial I/O3 register (address 0013
16
).
When the external synchronous clock is selected, the S
BUSY3
out-
put goes to “L” and the S
BUSY3
output goes to “H” when transmit
data is written into the serial I/O3 register to start a transmit
operation, regardless of the serial I/O transfer mode.
At termination of transmit/receive operation, the S
BUSY3
output
returns to “H” and the S
BUSY3
output returns to “L”, the initial
status, when the serial transfer status flag is set to “0”, regardless
of selecting the internal or external synchronous clock.
Furthermore, in the automatic transfer serial I/O mode (S
BUSY3
output function outputs in 1-byte units), the S
BUSY3
output goes to
“H” and the S
BUSY3
output goes to “L” each time 1-byte of receive
data is written into the automatic transfer RAM.
Fig. 43 S
BUSY3
output operation
(internal synchronous clock, 8-bits serial I/O)
Fig. 44 S
BUSY3
output operation
(external synchronous clock, 8-bits serial I/O)
Fig. 45 S
BUSY3
output operation in automatic transfer serial I/O mode
(internal synchronous clock, S
BUSY3
output function outputs each 1-byte)
S
BUSY3
S
CLK3
S
OUT3
Serial transfer
status flag
Serial transfer
status flag
S
BUSY3
S
CLK3
Write to Serial
I/O3 register
S
CLK3
S
BUSY3
S
OUT3
Automatic transfer
interval
Serial transfer
status flag
Automatic transfer RAM
→
Serial I/O3 register
Serial I/O3 register
→
Automatic transfer RAM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M38749E8D-XXXFS | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38749E8D-XXXGP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38749E8F-XXXFS | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38749E8F-XXXGP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38749E8T-XXXFS | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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