CN8380 Datasheet, PDF (69/91 Pages) Conexant Systems, Inc – integrated quad line interface unit unit for both 1.544 Mbps (T1) and 2.048 Mbps (E1) applications

CN8380
Quad T1/E1 Line Interface
3.0 Registers
3.4 Transmitter Shape Registers
3.4 Transmitter Shape Registers
The following SHAPE registers allow custom programming of the transmit signal pulse shapes. Each set of
eight registers determines the shape for its corresponding channel. A channel [n] is configured to use custom
shapes by first programming the eight SHAPE[n] registers, then setting register bit PPT [addr n1]. For more
information on transmitter functionality, refer to Section 2.4, Transmitter.
18 - 1F—Transmit PULSE Shape CONFIGURATION (SHAPE1)
7
6
5
4
3
2
—
—
—
SHAPE[4]
SHAPE[3]
SHAPE[2]
1
SHAPE[1]
R/W
0
SHAPE[0]
28 - 2F—Transmit PULSE Shape CONFIGURATION (SHAPE2)
7
6
5
4
3
2
—
—
—
SHAPE[4]
SHAPE[3]
SHAPE[2]
1
SHAPE[1]
R/W
0
SHAPE[0]
38 - 3F—Transmit PULSE Shape CONFIGURATION (SHAPE3)
7
6
5
4
3
2
—
—
—
SHAPE[4]
SHAPE[3]
SHAPE[2]
1
SHAPE[1]
R/W
0
SHAPE[0]
48 - 4F—Transmit PULSE Shape CONFIGURATION (SHAPE4)
7
6
5
4
3
2
—
—
—
SHAPE[4]
SHAPE[3]
SHAPE[2]
1
SHAPE[1]
R/W
0
SHAPE[0]
50—(TESTA3)
7
A_TEST[23]
6
A_TEST[22]
5
A_TEST[21]
4
A_TEST[20]
3
A_TEST[19]
2
A_TEST[18]
1
A_TEST[17]
R/W
0
A_TEST[16]
Factory use only. Must be remain at default value, 00.
N8380DSA
Conexant
3-17
4/21/99
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