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6.1 Communication Protocol
The CSI of the MTRC is fixed to the following operation mode:
Communication protocol: Clocked synchronous serial interface
• Data length:
• Transfer direction:
• Transfer mode:
• Serial clock frequency: f
Remark:
f
: Serial Interface clock
SCK
f
Ring Oscillator
Communication format:
6.2 Command Table
Instruction
READ
WRITE
Chapter 6 Serial Interface
8-bits fixed
MSB first
Transmit/Receive mode
<= f
SCK
Ring Oscillator
: frequency of MTRC Ring Oscillator
1st byte
(Command + Address)
Command (+ Address)
I
I
A
A
A
7
6
5
4
(input)
I
I
A
A
A
7
6
5
4
(input)
Preliminary User's Manual U17763EE1V1UD00
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2nd byte to last byte
(Data)
A
A
A
D
D
3
2
1
0
7
6
A
A
A
D
D
3
2
1
0
7
6
Data
D
D
D
D
D
D
5
4
3
2
1
0
(output)
D
D
D
D
D
D
5
4
3
2
1
0
(input)
104
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