DS21448 Maxim Integrated Products, DS21448 Datasheet - Page 16

• 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 4-1. 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