HFC-4S Cologne Chip AG, HFC-4S Datasheet - Page 200

• Manufacturer Part Number: HFC-4S
• Description: Isdn HDLC Fifo Controller With 8 (4) Integrated S/t Interfaces
• Manufacturer: Cologne Chip AG

HFC-4S
HFC-8S
8.5 Register description
8.5.1 Write only registers
200 of 273
R_CONF_EN
Conference mode register
0
6..1
7
A_CONF [SLOT]
Conference parameter register for the selected PCM time slot
Before writing this array register the PCM time slot must be selected by register R_SLOT.
2..0
4..3
6..5
7
Bits
Bits
0
0
0
0
0
Value
Value
Reset
Reset
Name
V_CONF_EN
(reserved)
V_ULAW
Name
V_CONF_NUM
V_NOISE_SUPPR
V_ATT_LEV
V_CONF_SL
Multiparty audio conferences
(write only)
(write only)
Data Sheet
Description
Must be ’000000’.
Description
Conference number
Input attenuation level
Conference enable for the selected PCM time
Global conference enable
’0’ = disable
’1’ = enable
Data coding of the conference unit
’0’ = A-Law
’1’ = -Law
(0 . . . 7)
Noise suppression threshold
’00’ = no noise suppression
’01’ = data values less or equal to 5 are set to 0
’10’ = data values less or equal to 9 are set to 0
’11’ = data values less or equal to 16 are set to 0
’00’ = 0 dB
’01’ = -3 dB
’10’ = -6 dB
’11’ = -9 dB
slot
’0’ = slot is not added to the conference
’1’ = slot is added to the conference
March 2003 (rev. A)
Cologne
Chip
0xD1
0x18