Read Panasonic KX-TCD951GB / KX-TCD955GC Service Manual online
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KX-TCD951GB/KX-TCD955GC
1. Scope
The purpose of this document is to describe the layout of the EEPROM (IC4) for the handset.
The EEPROM (IC4) contains hardware, software, and user specific parameters. Some parameters must be set during
production of the handset / base unit and some are set by the user when configuring the handset or during normal use of
the phone, e.g. redial stack.
production of the handset / base unit and some are set by the user when configuring the handset or during normal use of
the phone, e.g. redial stack.
EEPROM LAYOUT (HANDSET)
2. Introduction
All hardware specific parameters must be setup before the handset or base unit leave the factory. As some of these
parameters are vital for the operation of the hardware, a set of default parameters must be programmed before the actual
hardware fine tuning can be initiated. This document lists all default parameters with a short description.
parameters are vital for the operation of the hardware, a set of default parameters must be programmed before the actual
hardware fine tuning can be initiated. 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 addressee in the range.
means that the value 00 is repeated in all addressee in the range.
3. EEPROM (IC4) Layout
3.1.1 Handset EEPROM layout.
Address
Default value
Name
Description
General Setup
00-01
00
PIN
PIN code for handset
02
7D
BuzzerVolumeAdjust
Buzzer volume attenuation parameter (1= full
attenuation, 7d = no attenuation)
attenuation, 7d = no attenuation)
04
80
Quadrature adjustment
Sets tuning voltage for the quad-detector
(not used on SC14404)
(not used on SC14404)
05
06
InbandAttenuation
Number of steps to add to MinAudioVolume,
MedAudioVolume, and MaxAudioVolume during
generation of in-band tones.
MedAudioVolume, and MaxAudioVolume during
generation of in-band tones.
06
19
RangeWarningTreshold
Treshold for rangewarningcounter.
counts down 6 steps/sec from 0x1E. Desides where to
give rangewarning.
give rangewarning.
Range 0x1E-0x00
07-0B
FF
Unused
Free block
0C
1E
MACconnTime
MAC connection time-out value for loosing connection.
0D
1E
PplockedTime
Time-out value for keeping locked to base without
receiving RFPI from base.
receiving RFPI from base.
0E
62
AcceptableRssi
Maximum RSSI level for accepting a channel for bearer
setup.
setup.
0F
06
RssiMargien
Maximum increase of RSSI level before transmission.
10
3C
LowQualityLevel
Signal quality level at which handover is initiated (CRC
error count).
error count).
11
07
LockMode
Bit pattern defining which PP modes are allowed:
Bit 0: Normal paging mode (receive every 16 frame)
Bit 1: Lower CPU clock to 1/16
Bit 2: Enter sleep mode during scanning.
Bit 3: 10.368 MHz CPU clock
Bit 0: Normal paging mode (receive every 16 frame)
Bit 1: Lower CPU clock to 1/16
Bit 2: Enter sleep mode during scanning.
Bit 3: 10.368 MHz CPU clock
12-14
00 10 00
RssiCompensation
Rssi compensation table:
Byte 1: Offset to be subtracted from ADC-value
Byte 2: Factor for compensation (0x10 equals 1.0)
Byte 3: Reserved
Reference is –150dBm
Byte 1: Offset to be subtracted from ADC-value
Byte 2: Factor for compensation (0x10 equals 1.0)
Byte 3: Reserved
Reference is –150dBm
15-44
FF
Unused
Free block
45
FF
Unused
Free block
46
08
BandGapReg2
Bit 3-0 Bandgap register for Battery management
47
00
DspSideTone (LSB)
DspSideTone_lsb
(0xFFFF Equals 0x2000)
48
1E
DspSideTone (MSB)
DspSideTone_msb
(0xFFFF Equals 0x2000)
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