Datasheet

DS21348/DS21Q348
28 of 76
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)
Figure 3-5. Serial Port Operation for Write Access (R = 0) Modes 1 and 2
ICES = 1 (sample SDI on the falling edge of SCLK)
Figure 3-6. Serial Port Operation for Write Access (R = 0) Modes 3 and 4
ICES = 0 (sample SDI on the rising edge of SCLK)
12345678910111213141516
D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0D0
1
A
0
A
1
A
2
A
3A5
A
4
0
B
D0D0D0D0
D0
SCL
K
SDI
SDO
C
S
(lsb) (msb)
(lsb) (msb)
D1 D2 D3 D4 D5 D6 D0 D7
12345678910111213141516SCL
K
C
S
0
A
0
A
1
A
2
A
3
A
40B
(msb)
SDI
SDO
D1 D2 D3 D4 D5 D7
(lsb) (msb)
D0 D6
(lsb)
WRITE ACCESS ENABLED
12345678910 111213141516SCL
K
C
S
0
A
0
A
1
A
2
A
3
A
40B
(msb)
SDI
SDO
D1 D2 D3 D4 D5 D7
(lsb) (msb)
D0 D6
(lsb)
WRITE ACCESS ENABLED