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3886 Datasheet(PDF) 205 Page - Renesas Technology Corp

Part # 3886
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  380 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

3886 Datasheet(HTML) 205 Page - Renesas Technology Corp

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3886 Group User’s Manual
APPLICATION
2.5 Multi-master I2C-BUS interface
Fig. 2.5.17 Initial setting example
S0D
0
0 10 0
0
1
b0
b7
0
S2
1
0 00 1
0
1
b0
b7
0
S1
01
0
b0
b7
S2D
01
b0
b7
00
0
1
1
S1D
1
00
b0
b7
00
0
1
0
1
I2C address register (address 1316)
I2C clock control register (address 1616)
I2C status register (address 1416)
I2C START/STOP condition control register (address 1716)
I2C control register (address 1516)
Set slave address value A016.
Set clock 100 kHz (XIN = 8MHz)
Standard clock mode
ACK is returned
ACK clock
SCL pin low hold bit: fix to “1”
Slave receive mode
Set setup time hold time to 27 cycles (6.75
µs: XIN = 8 MHz).
SCL/SDA interrupt: Falling edge active
SCL/SDA interrupt: SDA valid
Set Setup/Hold time to “1” (long mode).
Set number of transmit/receive bits to “8”.
I2C-BUS interface: enabled
Addressing format
7-bit addressing format
System clock not stopped when WIT instruction is executed
Set CMOS input level.



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