sc16is850l NXP Semiconductors, sc16is850l Datasheet - Page 42
sc16is850l
Manufacturer Part Number
sc16is850l
Description
Single Uart With I2c-bus/spi Interface, 128 Bytes Of Transmit And Receive Fifos, Irda Sir Built-in Support
Manufacturer
NXP Semiconductors
Datasheet
1.SC16IS850L.pdf
(60 pages)
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Fig 17. SPI operation
SCLK
SCLK
SCLK
SCLK
SO
SO
(1) Last bit (D0) of the last byte to be written to the transmit FIFO.
(2) Last bit (D0) of the last byte to be read from the receive FIFO.
a. Register write
b. Register read
d. FIFO read cycle
c. FIFO write cycle
SI
SI
SI
SI
R/W = 0; A[2:0] = register address; CH1 = 0, CH0 = 0; A3 = 0; X = don’t care
R/W = 1; A[2:0] = register address; CH1 = 0, CH0 = 0; A3 = 0; X = don’t care
R/W = 0; A[2:0] = 000; CH1 = 0, CH0 = 0; A3 = 0; X = don’t care
R/W = 1; A[2:0] = 000; CH1 = 0, CH0 = 0; A3 = 0; X = don’t care
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
(1)
(2)
002aab433
002aab434
002aab435
002aab436
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