Datasheet

DS2148/DS21Q48
26 of 73
Figure 3-3. Serial Port Operation for Read Access Mode 3
ICES = 0 (sample SDI on the rising edge of SCLK)
OCES = 0 (update SDO on falling edge of SCLK)
Figure 3-4. Serial Port Operation for Read Access Mode 4
ICES = 0 (sample SDI on the rising edge of SCLK)
OCES = 1 (update SDO on rising edge of SCLK)
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1
A
0
A
1
A
2
A
3
A
40 B
D1 D2 D3 D4 D5 D6
SCL
K
SDI
SDO
C
S
(lsb) (msb)
D0
(lsb)
D7
(msb)
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D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0
1
A
0
A
1
A
2
A
3
A
4
0
B
D0D0D0D0
SCL
K
SDI
SDO
C
S
(lsb) (msb)
(lsb) (msb)
D1
D2
D3 D4 D5 D6D0 D7