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Figure 20-8, Figure 20-9 – Rainbow Electronics DS26504 User Manual

Page 122

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DS26504 T1/E1/J1/64KCC BITS Element

122 of 128

Figure 20-8. SPI Interface Timing Diagram, CPHA = 0, BIS[1:0] = 10






















Figure 20-9. SPI Interface Timing Diagram, CPHA = 1, BIS[1:0] = 10


MSB

LSB

BITS 6-1

SLAVE LSB

SLAVE MSB

BITS 6-1

2

1

3

4

4

5

5

9

11

NOTE

CS

INPUT

CLK INPUT

CPOL = 0

CLK INPUT

CPOL = 1

MISO

OUTPUT

MOSI

INPUT

6

7

10

8

10

NOTE: NOT DEFINED, BUT USUALLY LSB OF CHARACTER PREVIOUSLY
TRANSMITTED

MSB

LSB

BITS 6-1

SLAVE MSB

SLAVE LSB

BITS 6-1

2

1

3

4

4

5

5

6

7

8

9

11

11

10

NOTE

CS

INPUT

CLK INPUT

CPOL = 0

CLK INPUT

CPOL = 1

MISO

INPUT

MOSI

OUTPUT

NOTE: NOT DEFINED, BUT USUALLY MSB OF CHARACTER JUST RECEIVED.