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M38045F1HKP датащи(PDF) 223 Page - Renesas Technology Corp

номер детали M38045F1HKP
подробное описание детали  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  387 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M38045F1HKP датащи(HTML) 223 Page - Renesas Technology Corp

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2-99
APPLICATION
2.5 Multi-master I2C-BUS interface
Rev.1.00 Jan 14, 2005
REJ09B0212-0100Z
3804 Group (Spec.H)
Fig. 2.5.20 Initial setting example for SMBUS communication
S0D0
1
0 01 0
1
0
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
00
b0
b7
00
0
1
0
0
I2C slave address register 0 (address 0FF716)
I2C clock control register (address 001516)
I2C status register (address 001316)
I2C START/STOP condition control register (address 001616)
I2C control register (address 001416)
Set slave address value 001616.
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
Fix to “0”
Set number of transmit/receive bits to “8”.
I2C-BUS interface: Enabled
Addressing format
7-bit addressing format
Fix to “0”
Set SMBUS input level.
S3D
0
00
0 0
0
0
b0
b7
I2C special mode control register (address 001716)
Fix to “0”
ACK interrupt control : At communication completion
One-byte slave address compare mode
Fix to “0”
Fix to “0”
SCL pin low hold 2 flag set bit : Not used
SCL pin low hold set bit : Not set
STOP condition flag clear bit : Not used
This setting can be omitted.
0
0



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