參數(shù)資料
型號: ZL50018GAC
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 路由/交換
英文描述: 2 K Digital Switch with Enhanced Stratum 3 DPLL
中文描述: TELECOM, DIGITAL TIME SWITCH, PBGA256
封裝: 17 X 17 MM, 1.61 MM HEIGHT, PLASTIC, MS-034, BGA-256
文件頁數(shù): 93/136頁
文件大?。?/td> 1448K
代理商: ZL50018GAC
ZL50018
Data Sheet
93
Zarlink Semiconductor Inc.
Bit
Name
Description
15 - 3
Unused
Reserved.
In normal functional mode, these bits
MUST
be set to zero.
2 - 0
OJP2 - 0
Output Jitter Performance Bits:
These bits are used to control the DPLL output jitter
performance with respect to the noise received through the output pins. The higher
value (unsigned) means more filtering, while zero means filter bypass. The default
value of 2
H
gives the best performance for most circumstances.
Table 60 - Output Jitter Control Register (OJCR) Bits
Bit
Name
Description
15 - 9
Unused
Reserved
.
In normal functional mode, these bits
MUST
be set to zero
.
8 - 6
STIN[n]BD2 - 0
Input Stream[n] Bit Delay Bits.
The binary value of these bits refers to the number of bits that the input stream
will be delayed relative to FPi. The maximum value is 7. Zero means no delay.
5 - 4
STIN[n]SMP1 - 0
Input Data Sampling Point Selection Bits
:
Table 61 - Stream Input Control Register 0 - 31 (SICR0 - 31) BIts
External Read/Write Address: 006C
H
Reset Value: 0002
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OJP2
OJP1
OJP0
External Read/Write Address: 0100
H
- 011F
H
Reset Value: 0000
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
STIN[n]
BD2
STIN[n]
BD1
STIN[n]
BD0
STIN[n]
SMP1
STIN[n]
SMP0
STIN[n]
DR3
STIN[n]
DR2
STIN[n]
DR1
STIN[n]
DR0
STIN[n]SMP1-0
Sampling Point
(2.048 Mbps, 4.096 Mbps, 8.192 Mbps streams)
Sampling Point
(16.384 Mbps streams)
00
3/4 point
2/4 point
01
1/4 point
10
2/4 point
4/4 point
11
4/4 point
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