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参数资料
| 型号： | M37272EFFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件页数： | 70/134页 |
| 文件大小： | 1554K |
| 代理商： | M37272EFFP |
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37
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6H/M8H/MAH/MFH–XXXSP/FP
M37272E8SP/FP, M37272EFSP/FP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
8.6.6 START Condition Generation Method
When the ESO bit of the I2C control register (address 00F916) is “1,”
execute a write instruction to the I2C status register (address 00F816)
to set the MST, TRX and BB bits to “1.” A START condition will then
be generated. After that, the bit counter becomes “0002” and an SCL
for 1 byte is output. The START condition generation timing and BB
bit set timing are different in the standard clock mode and the high-
speed clock mode. Refer to Figure 8.6.9 for the START condition
generation timing diagram, and Table 8.6.2 for the START condition/
STOP condition generation timing table.
Fig. 8.6.9 START Condition Generation Timing Diagram
I2C status register
write signal
Hold time
Setup
time
SCL
SDA
BB flag
Set time
for BB flag
8.6.7 STOP Condition Generation Method
When the ESO bit of the I2C control register (address 00F916) is “1,”
execute a write instruction to the I2C status register (address 00F816)
for setting the MST bit and the TRX bit to “1” and the BB bit to “0”. A
STOP condition will then be generated. The STOP condition genera-
tion timing and the BB flag reset timing are different in the standard
clock mode and the high-speed clock mode. Refer to Figure 8.6.10
for the STOP condition generation timing diagram, and Table 8.6.2
for the START condition/STOP condition generation timing table.
Fig. 8.6.10 STOP Condition Generation Timing Diagram
Table 8.6.2 START Condition/STOP Condition Generation Tim-
ing Table
Item
Setup time
(START condition)
Setup time
(STOP condition)
Hold time
Set/reset time
for BB flag
Standard Clock Mode
5.0
s (20 cycles)
4.25
s (17 cycles)
5.0
s (20 cycles)
3.0
s (12 cycles)
High-speed Clock Mode
2.5
s (10 cycles)
1.75
s (7 cycles)
2.5
s (10 cycles)
1.5
s (6 cycles)
Note: Absolute time at
φ = 4 MHz. The value in parentheses denotes the
number of
φ cycles.
I2C status register
write signal
Hold time
Setup
time
SCL
SDA
BB flag
Reset time
for BB flag
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37272EFSP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37272M6 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37272M6-205SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37272M6327SP | 制造商:MITSUBISHI 功能描述:* |
| M37272M6335SP | 制造商:MITSUBISHI 功能描述:* |
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