MT90826 Mitel Networks Corporation, MT90826 Datasheet - Page 14

• Manufacturer Part Number: MT90826
• Description: Quad Digital Switch
• Manufacturer: Mitel Networks Corporation

MT90826
14
master clock
master clock
master clock
(16.384MHz)
Offset Value
(16.384MHz)
Offset Value
(16.384MHz)
Offset Value
at 16 MHz
at 32MHz
FEi Input
FEi Input
FEi Input
at 8MHz
Internal
Internal
Internal
CLK
CLK
CLK
F0i
F0i
F0i
CMOS
Figure 4 - Example for Frame Alignment Measurement
0
0
For 8Mb/s, 16Mb/s, 4&8Mb/s and 16&8Mb/s modes
0
Frame Boundary
1
1
For 4Mb/s and 2&4Mb/s modes
2
3
For 2Mb/s mode
1
2
4
5
3
6
(FD[8:0] = 03
(FD9 = 0, sample at internal C16i low phase)
(FD[8:0] = 02
(FD9 = 1, sample at internal C8i high phase)
(FD[8:0] = 06
(FD9 = 0, sample at internal C32i low phase)
7
4
2
8
H
H
H
, frame offset of three C16i clock cycles)
, frame offset of two C8i clock cycles)
9
, frame offset of six C32i clock cycles)
5
10
11 12
6
3
Advanced Information
13
7
14
15
4
8
16