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Functional timing diagrams, Processor interface, Parallel port mode – Rainbow Electronics DS26503 User Manual

Page 106: Spi serial port mode, Rocessor, Nterface, Tion, Afte, After a

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DS26503 T1/E1/J1 BITS Element

106 of 123

17. FUNCTIONAL TIMING DIAGRAMS

17.1 Processor Interface

17.1.1 Parallel Port Mode
See the AC Timing section.

17.1.2 SPI Serial Port Mode

Figure 17-1. SPI Serial Port Access, Read Mode, CPOL = 0, CPHA = 0










Figure 17-2. SPI Serial Port Access, Read Mode, CPOL = 1, CPHA = 0










Figure 17-3. SPI Serial Port Access, Read Mode, CPOL = 0, CPHA = 1

1

A7

0

0

0

0

0

0

D7

D6

D5

D4

D3

D2

D1

D0

LSB

MSB

LSB

MSB

SCK

CS

MOSI

MISO

B

A6

A5

A4

A3

A2

A1

LSB

MSB

A0

SCK

CS

1

A7

0

0

0

0

0

0

D7

D6

D5

D4

D3

D2

D1

D0

LSB

MSB

LSB

MSB

MOSI

MISO

B

A6

A5

A4

A3

A2

A1

LSB

MSB

A0

SCK

CS

1

A7

0

0

0

0

0

0

D7

D6

D5

D4

D3

D2

D1

D0

LSB

MSB

LSB

MSB

MOSI

MISO

B

A6

A5

A4

A3

A2

A1

LSB

MSB

A0