Start Condition Generation Method - Renesas M16C FAMILY series Hardware Manual
16-bit single-chip microcomputer
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- User manual (380 pages) ,
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16.9 START Condition Generation Method
Set the MST bit, TRX bit and BB flags in the S10 register to "1" and set the PIN bit and 4 low-order bits in the
S10 register to "0" simultaneously, to enter START condition standby mode, when the ES0 bit in the S1D0
register is set to "1" (I
address is written to the S00 register next, START condition is generated and the bit counter is reset to
"000
" and 1-byte SCL signal is output. The START condition generation timing varies between standard
2
clock mode and high-speed clock mode. See Figure 16.16 and Table 16.8.
Interrupt disable
Interrupt enable
Figure 16.14 Start condition generation flow chart
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C bus interface enabled) and the BB flag is set to "0" (bus free). When the slave
No
BB=0?
Yes
S10=E0
16
S00=Data
page 273
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16. MULTI-MASTER I
Start condition standby status setting
Start condition trigger generation
*Data=Slave address data
2
C bus INTERFACE
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