SC16IS740IPW PHILIPS [NXP Semiconductors], SC16IS740IPW Datasheet - Page 43

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SC16IS740IPW

Manufacturer Part Number
SC16IS740IPW
Description
Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet

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Fig 24. SPI operation
SCLK
SCLK
SCLK
SCLK
a. Register write
b. Register read
d. FIFO read cycle
c. FIFO write cycle
SO
SO
SI
SI
SI
SI
R/W = 0; A[3:0] = register address; CH1 = 0, CH0 = 0
R/W = 1; A[3:0] = register address; CH1 = 0, CH0 = 0
R/W = 0; A[3:0] = 0000; CH1 = 0, CH0 = 0
R/W = 1; A[3:0] = 0000; CH1 = 0, CH0 = 0
R/W
R/W
R/W
R/W
A3
A3
A3
A3
A2
A2
A2
A2
A1
A1
A1
A1
A0
A0
A0
A0
CH1
CH1
CH1
CH1
CH0
CH0
CH0
CH0
X
X
X
X
D7
D7
D7
D7
D6
D6
D6
D6
D5
D5
D5
D5
D4
D4
D4
D4
D3
D3
D3
D3
D2
D2
D2
D2
D1
D1
D1
D1
D0
D0
D0
D0
D7
D7
D6
D6
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
D0
D0
last bit
last bit
002aab433
002aab434
002aab435
002aab436

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