DS21448 Maxim Integrated Products, DS21448 Datasheet - Page 17

• Manufacturer Part Number: DS21448
• Description: IC LIU QUAD E1/T1/J1 144-BGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS21448

• Number Of Drivers/receivers: 4/4
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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