M37280MF Datasheet, PDF (127/178 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

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MITSUBISHI MICROCOMPUTERS
M37280MF–XXXSP, M37280MK–XXXSP
M37280EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
26. MULTI-MASTER I²C-BUS BUS LINE CHARACTERISTICS
Symbol
tBUF
tHD; STA
tLOW
tR
tHD; DAT
tHIGH
tF
tSU; DAT
tSU; STA
tSU; STO
Parameter
Bus free time
Hold time for START condition
LOW period of SCL clock
Rising time of both SCL and SDA signals
Data hold time
HIGH period of SCL clock
Falling time of both SCL and SDA signals
Data set-up time
Set-up time for repeated START condition
Set-up time for STOP condition
Standard clock mode High-speed clock mode
Unit
Min.
Max.
Min.
Max.
4.7
1.3
µs
4.0
0.6
µs
4.7
1.3
µs
1000 20+0.1Cb 300
ns
0
0
0.9
µs
4.0
0.6
µs
300 20+0.1Cb 300
ns
250
100
ns
4.7
0.6
µs
4.0
0.6
µs
Note: Cb = total capacitance of 1 bus line
SDA
tBUF
P
SCL
tLOW
tR
S
tHD;STA
tSU;STO
tF
Sr
P
tHD;STA
tHD;DAT
tHIGH
tSU;DAT
tSU;STA
S : Start condition
Sr : Restart condition
P : Stop condition
Fig.26.1 Definition Diagram of Timing on Multi-master I²C-BUS
Rev. 1.0
127