M95128-BN3 STMICROELECTRONICS [STMicroelectronics], M95128-BN3 Datasheet - Page 8

• Manufacturer Part Number: M95128-BN3
• Description: 256Kbit and 128Kbit Serial SPI Bus EEPROM With High Speed Clock
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M95256, M95128
SPI Modes
These devices can be driven by a microcontroller
with its SPI peripheral running in either of the two
following modes:
–
–
For these two modes, input data is latched in on
the rising edge of Serial Clock (C), and output data
Figure 5. SPI Modes Supported
8/39
CPOL
CPOL=0, CPHA=0
CPOL=1, CPHA=1
0
1
CPHA
0
1
D
Q
C
C
MSB
is available from the falling edge of Serial Clock
(C).
The difference between the two modes, as shown
in
master is in Stand-by mode and not transferring
data:
–
–
Figure
C remains at 0 for (CPOL=0, CPHA=0)
C remains at 1 for (CPOL=1, CPHA=1)
5., is the clock polarity when the bus
MSB
AI01438B