
DS21Q58 E1 Quad Transceiver
15 of 74
Figure 6-2. Serial Port Operation Mode 2
Figure 6-3. Serial Port Operation Mode 3
Figure 6-4. Serial Port Operation Mode 4
ICES = 1 (SAMPLE SDI ON THE FALLING EDGE OF SCLK)
OCES = 0 (UPDATE SDO ON THE FALLING EDGE OF SCLK)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R/
W
A0
A1
A2
A3
A4
A5
B
D1
D2
D3
D4
D5
D6
SCLK
SDI
SDO
CS
LSB
MSB
D0
LSB
D7
MSB
ICES = 0 (SAMPLE SDI ON THE RISING EDGE OF SCLK)
OCES = 0 (UPDATE SDO ON THE FALLING EDGE OF SCLK)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R/
W
A0
A1
A2
A3
A4
A5
B
D1
D2
D3
D4
D5
D6
SCLK
SDI
SDO
CS
LSB
MSB
D0
LSB
D7
MSB
ICES = 0 (SAMPLE SDI ON THE RISING EDGE OF SCLK)
OCES = 1 (UPDATE SDO ON THE RISING EDGE OF SCLK)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R/
W
A0
A1
A2
A3
A4
A5
B
D1
D2
D3
D4
D5
D6
SCLK
SDI
SDO
CS
LSB
MSB
D0
LSB
D7
MSB