28 EEPROM LAYOUT (BASE UNIT)
28.1. Scope
The purpose of this section is to describe the layout of the EEPROM (IC1) for the KX-TCD440 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 0220, and some are set during normal use of the phone.
28.2. Introduction
The base unit uses a 32 K bit serial EEPROM (IC1) 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.
Country
Setting
x
Default - no specific country setting, so revert to default value
28.3. EEPROM Layout
28.3.1. General Setup
Address
Default
Name
Country
Setting
Type
Description
0000-01
00 60
EepromOscillator
x
A
Frequency adjustment
0002
0A
Modulation Deviation
x
A
Modulation adjustment
0020-24
-
RFPI (ID for Base Unit)
x
A
RFPI
0025-26
00 00
AC (Base PIN code)
x
D
AC code
0028
00
TBR22Test
x
D
TBR22 test
0030-0034
FF.. FF
IPUI_1 (ID for H/S 1)
x
D
Ipui for handset 1. If set to FF.. FF (5bytes) the
handset is not enrolled.
0035-0039
FF .. FF
IPUI_2 (ID for H/S 2)
x
D
Ipui for handset 2. If set to FF.. FF (5bytes) the
handset is not enrolled.
003A-003E
FF.. FF
IPUI_3 (ID for H/S 3)
x
D
Ipui for handset 3. If set to FF.. FF (5bytes) the
handset is not enrolled.
003F-0043
FF.. FF
IPUI_4 (ID for H/S 4)
x
D
Ipui for handset 4. If set to FF.. FF (5bytes) the
handset is not enrolled.
0044-0048
FF.. FF
IPUI_5 (ID for H/S 5)
x
D
Ipui for handset 5. If set to FF.. FF (5bytes) the
handset is not enrolled.
0049-004D
FF.. FF
IPUI_6 (ID for H/S 6)
x
D
Ipui for handset 6. If set to FF .. FF (5bytes) the
handset is not enrolled.
004E-008F
-
Reserved
x
-
Protocol data
0090-009F
-
UAK_1
x
-
UAK for handset 1 (for factory use)
00A0-00AF
-
UAK_2
x
-
UAK for handset 2 (for factory use)
00B0-00BF
-
UAK_3
x
-
UAK for handset 3 (for factory use)
00C0-00CF
-
UAK_4
x
-
UAK for handset 4 (for factory use)
00D0-00DF
-
UAK_5
x
-
UAK for handset 5 (for factory use)
00E0-00EF
-
UAK_6
x
-
UAK for handset 6 (for factory use)
28.3.2. Switch Control
Address
Default
Name
Country
Setting
Type
Description
09F1
00
HsRegInfo.RegFlags
x
D
Handset registration info - registration ON/OFF
1=reg, 0=no reg
65
KX-TCD440HGS / KX-TCD440H GT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT
