CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U13850EJ6V0UD
381
Figure 10-33. Arbitration Timing Example
Master 1
Master 2
Transfer lines
SCL
SDA
SCL
SDA
SCL
SDA
Master 1 loses arbitration
Hi-Z
Hi-Z
Remark
n = 0, 1
Table 10-12. Status During Arbitration and Interrupt Request Generation Timing
Status During Arbitration
Interrupt Request Generation Timing
During address transmission
At falling edge of eighth or ninth clock following byte transfer
Note 1
Read/write data after address transmission
During extension code transmission
Read/write data after extension code transmission
During data transmission
During ACK signal transfer period after data reception
When restart condition is detected during data transfer
When stop condition is detected during data transfer
When stop condition is output (when SPIEn = 1)
Note 2
When data is at low level while attempting to output a
restart condition
At falling edge of eighth or ninth clock following byte transfer
Note 1
When stop condition is detected while attempting to
output a restart condition
When stop condition is output (when SPIEn = 1)
Note 2
When data is at low level while attempting to output a stop
condition
At falling edge of eighth or ninth clock following byte transfer
Note 1
When SCLn is at low level while attempting to output a
restart condition
Содержание V850/SB1
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