DS21448-LW Maxim Integrated Products, DS21448-LW Datasheet - Page 16

• Manufacturer Part Number: DS21448-LW
• Description: Network Controller & Processor ICs 3.3V Quad E1-T1-J1 L ine Interface T1-E1-
• Manufacturer: Maxim Integrated Products

Specifications of DS21448-LW

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 4-1. Serial Port Operation for Read Access (R = 1) Mode 1
Figure 4-2. Serial Port Operation for Read Access (R = 1) Mode 2
Figure 4-3. Serial Port Operation for Read Access (R = 1) Mode 3
SCLK
CS
SDI
SDO
ICES = 1 (SAMPLE SDI ON THE FALLING EDGE OF SCLK)
OCES = 0 (UPDATE SDO ON FALLING EDGE OF SCLK)
ICES = 0 (SAMPLE SDI ON THE RISING EDGE OF SCLK)
OCES = 0 (UPDATE SDO ON FALLING EDGE OF SCLK)
SCLK
CS
SDI
SDO
ICES = 1 (SAMPLE SDI ON THE FALLING EDGE OF SCLK)
OCES = 1 (UPDATE SDO ON RISING EDGE OF SCLK)
SCLK
CS
SDI
SDO
(LSB)
1
(LSB)
(LSB)
1
1
1
1
READ ACCESS ENABLED
1
A1
2
A1
2
2
A1
A2
3
A2
3
3
A2
A3
4
A3
4
4
A3
A4
5
A4
5
5
A4
A5
6
A5
6
6
A5
0
7
7
0
7
0
(MSB)
B
(MSB)
8
16 of 60
8
(MSB)
B
8
(LSB)
B
D0
9
9
(LSB)
(LSB)
9
D0
D0
D1
10
10
10
D1
D1
D2
11
11
11
D2
D2
D3
12
12
12
D3
D3
D4
13
13
13
D4
D4
D5
14
14
14
D5
D5
D6
15
15
(MSB)
15
D6
D6
D7
16
16
(MSB)
(MSB)
16
D7
D7