Si3215
PCLK
FSYNC
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PCLK_CNT
DRX
MSB
MSB
LSB
DTX
HI-Z
HI-Z
LSB
Figure 29. Example, IDL2 Long FSYNC, B2, 10-Bit Mode (TXS/RXS = 10)
PCLK
FSYNC
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PCLK_CNT
DRX
MSB
LSB
DTX
HI-Z
HI-Z
Figure 30. GCI Example, Timeslot 1 (TXS/RXS = 0)
2.12. Companding
The ProSLIC supports both µ-255 Law and A-Law companding formats in addition to linear data. These 8-bit
companding schemes follow a segmented curve formatted as a sign bit, three chord bits, and four step bits. µ-255
Law is more commonly used in North America and Japan, while A-Law is primarily used in Europe. Data format is
selected via the PCMF register. Tables 31 and 32 define the µ-Law and A-Law encoding formats.
Rev. 0.92
47
SILICON [ SILICON ]
