Panasonic KX-TCD420GS Service Manual page 82

The EEPROM contains hardware, software, and user specific parameters. Some parameters are set
during production of the handset e.g. crystal oscillator adjustment at 0000..01, some are set by the
user when configuring the handset e.g. ringer volume at 0F38, and some during normal use of the
phone e.g. redial memory at 0311..0392.
28.2. Introduction
The handset uses a 32k bit serial EEPROM (IC2) for storing volatile parameters. All parameters are set
up before the handset the factory. Some of these are vital for the operation of the hardware so a set of
default parameters is programmed before the actual hardware fine-tuning can be initiated. This
document lists all default settings with a short description.
This document lists all default parameters with a short description.
In the tables below values in a range that are similar are not repeated; i.e. Address 00 to 01 contains
the value 00 simply means that the value 00 is repeated in all addresses in the range.
Type Name
D default
A adjust
-
28.3. EEPROM contents
28.3.1. General Setup
Address Default
0000-0001 00
0002 20
0030-0034 00
0036-003A FF
003B-003F FF
0040-0044 FF
0045-0049 FF
004A-004D FF
28.3.2. Signal detection (for factory use only)
Description
The EEPROM location is preset to the Default value by the eeprom default
loader.
The EEPROM location is set during the production test and should not be
overwritten. The value is set by the eeprom default loader only if the location
contains 0xFF, i, e. it has never been set.
EEPROM location which is not set at all.
Name
EepromOscillator
ModulationDeviation
IPEI (ID for Handset)
PARK_1 (ID for Base 1)
PARK_2 (ID for Base 2)
PARK_3 (ID for Base 3)
PARK_4 (ID for Base 4)
PLI_1-PLI_4
Type
A Frequency adjustment
A Mudulation adjustment
A IPEI
- PARK for registration 1
- PARK for registration 2
- PARK for registration 3
- PARK for registration 4
D Pli for registration 1-4. If set to FF the
registration is deleted.
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Description