M95160-X 查看數據表（PDF） - STMicroelectronics

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M95160-X

16 Kbit and 8 Kbit serial SPI bus EEPROM with high speed clock

STMicroelectronics 

M95160-x, M95080-x

Connecting to the SPI bus

3.1

SPI modes

These devices can be driven by a microcontroller with its SPI peripheral running in either of

the two following modes:

● CPOL=0, CPHA=0

● CPOL=1, CPHA=1

For these two modes, input data is latched in on the rising edge of Serial Clock (C), and

output data is available from the falling edge of Serial Clock (C).

The difference between the two modes, as shown in Figure 5., is the clock polarity when the

bus master is in Stand-by mode and not transferring data:

● C remains at 0 for (CPOL=0, CPHA=0)

● C remains at 1 for (CPOL=1, CPHA=1)

Figure 5. SPI modes supported

CPOL CPHA

0

0C

1

1C

D

MSB

Q

MSB

AI01438B

Doc ID 8028 Rev 10

11/50

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