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M38044F2HKP Datenblatt(PDF) 233 Page - Renesas Technology Corp

Teilenummer M38044F2HKP
Bauteilbeschribung  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  387 Pages
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Hersteller  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M38044F2HKP Datenblatt(HTML) 233 Page - Renesas Technology Corp

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APPLICATION
2.5 Multi-master I2C-BUS interface
Rev.1.00 Jan 14, 2004
REJ09B0212-0100Z
3804 Group (Spec.H)
➁ Reception of command
Confirm correct completion of the command reception in the interrupt after receiving the command.
After confirming correct command from the host, write dummy data to the I2C data shift register
to wait for reception of the next slave address.
Fig. 2.5.30 Reception process of command
End
S0 (address 001116)
← 111111112
Error end
Receive data buffer
← S0 (address 001116)
S2 (address 001516)
← 100001012
Judgment of receive command
PIN (address 001316), bit 4 ?
1 (STOP condition)
0 (command received)
2
S1 (address 001316)
← 000100002
• Judgment of bus hold
• “ACK clock is used” select and “ACK is returned” set
• Slave receive mode set
• Dummy data write to I2C data shift register
• Receive data read and save



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