CH1786LC Cermetek Microelectronics, CH1786LC Datasheet - Page 10

• Manufacturer Part Number: CH1786LC
• Manufacturer: Cermetek Microelectronics

Specifications of CH1786LC

• Main Category: Single Chip
• Data Rate: 2.34375Kbps
• Power Supply Type: Analog
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Cermetek Microelectronics, Inc.
NOTES:
2004 Cermetek Microelectronics, Inc.
The CH1786LC and CH1786NH products do not contain NVRAM and, therefore, do not support data storage after
power down. A detailed definition of all commands and S-Registers is available from Cermetek Microelectronics,
Inc. Refer to Cermetek Document AT Commands and S-Registers Reference Guide or access our website at
www.cermetek.com.
Register
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
1. Parameters indicated with a (*) in the Saved column may be stored in User Profile n=0, 1 by executing
2. A stored Profile is a subset of allowed parameters and is comprised of those parameters displayed
3. Factory Default values that are different from the Firmware Default values are highlighted in BOLD.
4. Restore Factory Default values using Zn command.
5. Restore Firmware Default values using &Fn command.
Ring to Answer On
Ring Count
Escape Code Character
Carriage Return Character
Line Feed Character
Back Space Character
Maximum Wait Time for Dial Tone
Maximum Wait Time for Data Carrier
Pause Time for Comma
Carrier Detect Response Time
Lost Carrier to Hang-up Delay
DTMF Dialing Speed
Escape Code Guard Time
Reserved
Bit Mapped Options Register
Reserved
Modem Test Options
FAX Mode Null Byte Timer
Test Timer
Protocol Interface Speed
FAX Mode Inactivity Timer
Bit Mapped Option Register
Bit Mapped Option Register
Bit Mapped Option Register
Sleep Mode Inactivity Timer
Delay to DTR Off
RTS to CTS Delay Interval
Bit Mapped Option Register
Bit Mapped Option Register
the appropriate &Wn command.
with the &V command.
Description
Table 4.
S-Register Summary.
Page 10
NOTE
Bit Mapped
Bit Mapped
Bit Mapped
Bit Mapped
Bit Mapped
Bit Mapped
Bit Mapped
0-32, 127
Range
50-255
0-255
0-255
0-127
0-127
0-127
2-255
1-255
0-255
1-255
1-255
0-255
0-255
0-255
0-127
0-255
0-255
0-255
0-1
-
-
0.1 or 1s
4ms incr
ASCII
ASCII
ASCII
ASCII
Units
1/10s
1/10s
1/50s
0.01s
none
none
none
none
none
none
none
none
rings
rings
ms
s
s
s
s
s
s
-
-
CH1786 Family of Ultra Small 2400bps Modems
Document No. 607-0004 Revision L4 (08/04)
Saved
*
*
*
*
*
*
*
*
*
*
-
-
170 (AAH)
Firmware
007 (07H)
118 (76H)
064 (40H)
Defaults
000
000
043
013
010
008
002
030
002
006
014
095
050
000
000
000
000
000
000
000
000
000
005
001
000
170 (AAH)
096 (06H)
118 (76H)
023 (17H)
064 (40H)
Defaults
Factory
001
000
043
013
010
008
002
030
002
006
014
095
050
000
000
000
000
000
000
000
000
005
001
001