14.1. Scope
14.3.1. General Setup
14 EEPROM LAYOUT (BASE UNIT)
The purpose of this section is to describe the layout of the EEPROM (IC9) for the TCD705 Base Unit.
The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the
base e.g. crystal frequency adjustment at address 0000 and 0001, some are set by the user configuration e.g. ringer volume
at address 0210, and some are set during normal use of the phone e.g. meter pulse billing at address 1040..015F.
14.2. Introduction
The base unit uses a 32k bit (4096 x 8) serial EEPROM (IC9) for storing volatile parameters. All parameters are set up before
the base leaves 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.
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. All values in this document are in hexadecimal notation.
Type Name Description
D default The EEPROM location is preset to the Default value by the eeprom default loader.
A adjust 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 all 1’s (byte: 0xFF, word FFFFh), i, e. it has never been set.
- EEPROM location which is not set at all.
d default Same as D but best-guess value and/or not verified.
14.3. EEPROM Layout
Address Default Name Type Description
0000-01 00 E0 EepromOscillator A Frequency adjustment
0002 20 ModulationDeviation A Mudulation adjustment
001E-001F ??..?? Reserved - Protocol data
0020 00 .. 00 RFPI A RFPI
0025 00 00 AC D AC code
0027 00 DiversityMode D Diversity mode: 0: Diversity
1: Fixed on antenna 1
2: Fixed on antenna 2
0030-0034 FF .. FF IPUI_1 D Ipui for handset 1. If set to FF .. FF the handset
is not enrolled.
0035-0039 FF .. FF IPUI_2 D Ipui for handset 2. If set to FF .. FF the handset
is not enrolled.
003A-003E FF .. FF IPUI_3 D Ipui for handset 3. If set to FF .. FF the handset
is not enrolled.
003F-0043 FF .. FF IPUI_4 D Ipui for handset 4. If set to FF .. FF the handset
is not enrolled.
0044-0048 FF .. FF IPUI_5 D Ipui for handset 5. If set to FF .. FF the handset
is not enrolled.
0049-004D FF .. FF IPUI_6 D Ipui for handset 6. If set to FF .. FF the handset
is not enrolled.
0090-009F ??..?? UAK_1 - UAK for hanset 1
00A0-00AF ??..?? UAK_2 - UAK for hanset 2
00B0-00BF ??..?? UAK_3 - UAK for hanset 3
00C0-00CF ??..?? UAK_4 - UAK for hanset 4
00D0-00DF ??..?? UAK_5 - UAK for hanset 5
00E0-00EF ??..?? UAK_6 - UAK for hanset 6
52
KX-TCD705RUM / KX-TCD705RUS
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