Confidential
USERS MANUAL
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Document number
Revision
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D
service provider. The table below lists the NAM programming tags that correspond to the necessary
information. The tag refers to the tag number in the parameter table in chapter 4.3.2.
Information
Default value
Tag
Description
MIN 000000<last
4
digits o ESN>
1
10 digit phone number
AMPS_Home_SID
69
25
Home System ID for AMPS operation
AMPS_IPCH
333
26
AMPS Initial Paging channel
Unlocked_Home_SID/NID
0:69:65535
15
Home System ID for CDMA operation
CDMA_Primary_CH_A
283
17
Primary channel for band A
CDMA_Second_CH_A
691
18
Secondary channel for band A
CDMA_Primary_CH_B
384
19
Primary channel for band B
CDMA_Second_CH_B
777
20
Secondary channel for band B
For more information regarding programming the NAM refer to the NAM programming user scenario.
6.5 NAM
Programming
NAM programming stands for reading and writing configurable parameters stored in non-volatile memory
space of the CM52. The parameters are defined in the AT command reference section together with the
description of the AT*ERNAM command that is used for reading and writing the NAM.
The purpose of this chapter is to demonstrate the NAM programming mechanism using examples. Before
studying the examples, the user has to be familiar with NAM programming.
The following AT commands are part of NAM programming:
AT*ESCAN
Suspend/Resume
CM52
AT*ERNAM
Read and Write NAM
AT*ERPRL Preferred
Roaming
List
AT*ESSE
Switch between NAMs
Note:
The MoST tool provided by SEMC is used for accessing the NAM. It is recommended that you
explore MoST before using it to read from and write to the NAM via AT commands.
6.5.1
Enter NAM programming mode
The CM52 has to be in suspended state (no network communication) before any writing to the NAM can be
performed. The NAM can be read without going into a suspended mode.
When the NAM programming is done, CM52 has to exit suspended state to reinitiate the network
communications.
The following scenario will take the user through the necessary preparations. While studying this example, it is
necessary to know how the NAM AT commands are structured and what the parameters mean.
Command/
Response (in gray)
Description
AT*ESCAN=0
Set CM52 in suspended state
OK