Renesas M16C/50 Series User Manual page 565

M16C/5L Group, M16C/56 Group
22.3.4 Generating a Restart Condition
Use the following procedure to generate a restart condition when 1-byte data is transmitted/received.
(1) Write E0h to the S10 register. (Start condition standby state. The SDAMM pin released.)
(2) Wait until the SDAMM pin level becomes high.
(3) Write a slave address to the S00 register (a start condition trigger is generated)
Figure 22.9 shows the Restart Condition Generation Timing.
SCLMM
SDAMM
Write signal to the S10 register
(Start condition standby)
Write signal to the S00 register
(Start condition trigger generation)
Figure 22.9 Restart Condition Generation Timing
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
8 9
(ACK clock)
22. Multi-master I
Wait until the SDAMM becomes high level.
2
C-bus Interface
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