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7220 데이터시트(PDF) 199 Page - Renesas Technology Corp

부품명 7220
상세설명  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  303 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7220 데이터시트(HTML) 199 Page - Renesas Technology Corp

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5-26
APPLICATION
5.5 Example of I2C-BUS control by software (M37220M3-XXXSP/FP)
7220 Group User’s Manual
5.5 Example of I2C-BUS control by software (M37220M3-XXXSP/FP)
Althogh, the M37220M3-XXXSP/FP has no multi-master I2C-BUS interface, it can control single-master I2C-
BUS by software. Most TV systems can be controlled in this way.
This paragraph explains transmit/receive control example of a single-chip color TV signal processor (M52340SP)
adaptable to the I2C-BUS interface.
5.5.1 Specifications
q Single-chip color TV signal processor required: M52340SP
q Number of transfer bits: 8 bits
q Data format: addressing format
q Pins required: P21, P20
q Direction of data transfer: MSB first
5.5.2 Connection example
Fig. 5.5.1 Connection example
P20/SCLK
P21/SOUT
M37220M3-XXXSP/FP
<Master>
M52340SP
<Slave>
SCL
SDA
SCL
SDA
SCL
SDA
: Serial clock
: Serial data



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