HFC-S2M Cologne Chip AG, HFC-S2M Datasheet - Page 190
![no-image](/images/no-image-200.jpg)
HFC-S2M
Manufacturer Part Number
HFC-S2M
Description
Isdn HDLC Fifo Controller With Primary Rate Interface
Manufacturer
Cologne Chip AG
Datasheet
1.HFC-S2M.pdf
(272 pages)
- Current page: 190 of 272
- Download datasheet (3Mb)
HFC-E1
190 of 272
R_PCM_MD2
PCM mode, register 2
This multi-register is selected with bitmap V_PCM_ADDR = 0xA of the regis-
ter R_PCM_MD0.
0
1
2
3
5..4
6
7
Bits
0
0
0
0
0
Reset
Value
Name
(reserved)
V_SYNC_PLL
V_SYNC_SRC
V_SYNC_OUT
(reserved)
V_ICR_FR_TIME
V_EN_PLL
PCM interface
(write only)
Data Sheet
Must be ’00’.
Description
Must be ’0’.
SYNC_O with internal PLL output
’0’ = V_SYNC_OUT is used for synchronization
’1’ = SYNC_O has a frequency of the internal PLL
output signal C4O divided by 8 (512 kHz, 1024 kHz
or 2048 kHz depending on the PCM data rate)
PCM PLL synchronization source selection
’0’ = E1 interface (see R_SYNC_CTRL for further
sync configuration)
’1’ = SYNC_I input 8 kHz
SYNC_O output selection
’0’ = E1 interface
’1’ = SYNC_I is connected to SYNC_O
Increase PCM frame time
This bit is only valid if V_EN_PLL is set.
’0’ = PCM frame time is reduced as selected by the
bitmap V_PLL_ADJ of the R_PCM_MD1
register
’1’ = PCM frame time is increased as selected by
the bitmap V_PLL_ADJ of the R_PCM_MD1
register
PLL enable
’0’ = normal operation
’1’ = enable PCM PLL adjustment (can be used to
make synchronization by software if no sync
source is available)
March 2003 (rev. A)
Cologne
Chip
0x15
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