CC-56K2-IS Copeland Communications Inc, CC-56K2-IS Datasheet - Page 46

• Manufacturer Part Number: CC-56K2-IS
• Description: MODEM 56KBAUD SERIAL 3.3V
• Manufacturer: Copeland Communications Inc

Specifications of CC-56K2-IS

• Data Format: V.22, V23, V.32, V.34, V.90, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: UART
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Mounting Type: -
• Other names: 539-1019

U67 ITC1
Reset settings = 0x0008
© 2004, Copeland Communications, Inc.
Name
Type
Bit
15:14
13:12
11:10
5:4
3:2
Bit
9
8
7
6
D15
Reserved
Reserved
Reserved
Reserved
MINI[1:0]
DCV[1:0
Name
DCR
OHS
D14
ILIM
D13
MINI[1:0]
Read returns 0.
Minimum Operational Loop Current.
Adjusts the minimum loop current at which the DAA can operate. Increasing the minimum
operational loop current can improve the signal headroom at a lower TIP/RING Voltage.
MINI[1:0]
Read returns 0.
Current Limiting Enable.
0 = Current limiting mode disabled.
1 = Current limiting mode enabled. This mode limits loop current to a maximum of 60 mA per the
TBR21 standard.
Read returns 0.
DC Impedance Selection.
0 - Normal DC Impedance. This mode should be used for all standard applications.
1 = 800? DC termination.
On-Hook Speed.
This bit works in combination with the OHS2 bit (U62, bit 8) to set the on-hook speed. The on-hook
speeds are measured from the time the OH bit is cleared until loop current equals zero.
OHS
Read returns 0.
TIP/RING Voltage Adjust.
These bits affect the TIP/RING voltage on the line. Low voltage countries should use a lower
TIP/RING voltage. Raising the TIP/RING voltage can improve signal headroom.
DCV[1:0]
R/W
0
1
0
00
01
10
11
10
00
01
11
D12
OHS2
0
1
X
D11
Min Loop Current
DCT Voltage
3.1V
3.2V
3.35V
3.5V
10 mA
12 mA
14 mA
16 mA
D10
Less than 0.5 ms
3ms
Mean On-Hook Speed
26 ms
Page 46 of 60
Data Sheet
±
ILIM
R/W
D9
±
10% (meets ETSI standard)
10% (meets Australia spark quenching spec)
D8
DCR
R/W
D7
Function
OHS
R/W
D6
World modem II Datasheet Rev 1.1
D5
D4
World modem II
D3
DCV[1:0]
R/W
D2
R/W
D1
RZ
R/W
D0
RT