73
KX-TG2853BXS/KX-TG2854BXS/KX-TGA280BXS
15 Appendix Information of Schematic Diagram
15.1. CPU Data (Base Unit)
15.1.1. BBIC (IC4)
PIN
Description
I/O
High
High_Z
Low
1
Digital Source 3.0V VDD
-
-
-
2
Digital GND
DGN
D
-
-
-
3
Address bus
D.O
-
-
H
4
Address bus
D.O
-
-
H
5
Address bus
D.O
-
-
H
6
Address bus
D.O
-
-
H
7
Address bus
D.O
-
-
H
8
Address bus
D.O
-
-
H
9
Address bus
D.O
-
-
H
10
ANT diversity cont D.O
-
-
O-HiZ
11
ANT diversity cont D.O
-
-
O-HiZ
12
RF-PA ON: SW
D.O
ON
OFF
O-HiZ
13
Non use
-
-
-
O-HiZ
14
Non use
-
-
-
O-HiZ
15
Non use
-
-
-
O-HiZ
16
Digital Source 1.8V +1.8
V
-
-
-
17
Digital GND
DGN
D
-
-
-
18
RF_CLK
D.O
-
-
L
19
Digital Source 1.8V +1.8
V
-
-
-
20
Digital GND
-
-
-
-
21
10.368 MHz IN
D.I
-
-
I
22
Xtal ADJ-C
D.I
-
-
I
23
Analog GND
AGN
D
-
-
-
24
1.8V
+1.8
V
-
-
-
25
RSSI
A.I
-
-
I
26
RF recovery l input D.I
-
-
I
27
Non use
-
-
-
I
28
RF_TX_DATA
D.O
-
-
Hi-Z
29
Address bus
D.O
-
-
H
30
Address bus
D.O
-
-
H
31
Address bus
D.O
-
-
H
32
Address bus
D.O
-
-
H
33
Address bus
D.O
-
-
H
34
Address bus Non
use
D.O
-
-
H
35
Address bus
D.O
-
-
H
36
Address bus Non
use
D.O
-
-
H
37
Address bus Non
use
D.O
-
-
H
38
RF LOAD EN
D.O
-
-
L
39
RF serial DATA
D.O
-
-
Hi-Z
40
RF serial CLK
D.O
-
-
L
41
Non use
D.I
-
-
I
42
RF_TXRX_SW
D.O
TX
RX
O-HiZ
43
FROM_READ
D.O
-
READ
H
44
FROM_WRITE
D.O
-
WRITE
H
45
Non use
D.O
-
-
I-PU
46
Non use
D.O
-
-
H
47
UART TX_DATA
D.O
RUN
BOOT
I-PU
48
UART RX_DATA
D.I
-
-
I-PD
49
JTAG DATA i/f
D.I
-
Debug
MODE
I-PU
50
key Scan
D.I
Non
Key in
I-PU
51
key Scan
D.I
Non
Key in
I-PU
52
key Scan
D.I
Non
Key in
I-PU
53
Non use
-
-
-
-
54
SP-AMP_CD
D.O
ON
-
OFF
55
Digital Source 3.0V VDD
-
-
-
56
Digital GND
DGN
D
-
-
-
57
ANS-LED
D.O
ON
OFF
-
58
INUSE_LED
D.O
ON
OFF
-
59
key Scan
D.O
Non
Key in
I-PU
60
ROM_CS
D.O
-
CS-on
H
61
key Scan
D.O
Non
Key in
I-PU
62
HOOK
D.O
OFF-
HOOK
ON-HOOK
I-PU
63
Non use
D.I
-
-
-
64
Non use
D.O
-
-
O-H
65
Non use
D.O
-
-
O-H
66
Non use
D.O
-
-
O-H
67
Data bus
I/O
-
-
H
68
Data bus
I/O
-
-
H
69
Data bus
I/O
-
-
H
70
Data bus
I/O
-
-
H
71
Data bus
I/O
-
-
H
72
Data bus
I/O
-
-
H
73
Data bus
I/O
-
-
H
74
Data bus
I/O
-
-
H
75
Data bus
I/O
-
-
H
76
DG
DGN
D
-
-
-
77
Digital Source 1.8V +1.8
V
-
-
-
78
Digital Source 3.0V +3.0
V
-
-
-
79
KEYTONE
A.O
Analog
Analog
I
80
Pulse mute
D.O
-
-
I
81
Non use
A.I
-
-
I
82
Loop Current Det.
A.I
-
-
I
83
LCD_CLK:115.2kH
z
D.O
-
-
I
84
key Scan
D.O
Non
Key in
I-PU
85
Data bus
I/O
-
-
H
86
Data bus
I/O
-
-
H
87
Data bus
I/O
-
-
H
88
Data bus
I/O
-
-
H
89
Data bus
I/O
-
-
H
90
Data bus
I/O
-
-
H
91
Data bus
I/O
-
-
H
92
Data bus
I/O
-
-
H
93
Non use (Test
Mode pin)
D.I
-
-
O-L
94
Non use
D.O
-
-
O-HiZ
95
Power-ON Det.
D.I
Power-on
-
I-PD
96
Non use
D.I
-
-
I-PD
97
Non use
A.O
-
-
O-L
98
Ringing
D.I
-
-
I
99
Non use
A.O
-
-
O
100 100 SP OUT
A.O
Analog
Analog
O
101 Non use
-
-
-
I-PU
102 Non use
-
-
-
I-PU
103 REG1_Sense
A.I
-
-
I
104 REG1 control
D.O
-
-
H
PIN
Description
I/O
High
High_Z
Low
Summary of Contents for KX-TG2853BXS
Page 2: ...2 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 6: ...6 KX TG2853BXS KX TG2854BXS KX TGA280BXS 3 Specifications ...
Page 15: ...15 KX TG2853BXS KX TG2854BXS KX TGA280BXS 4 6 Signal Route ...
Page 17: ...17 KX TG2853BXS KX TG2854BXS KX TGA280BXS 5 1 2 Cordless Handset 5 1 3 Charger 5 2 Display ...
Page 18: ...18 KX TG2853BXS KX TG2854BXS KX TGA280BXS 6 Installation Instructions 6 1 Connections ...
Page 22: ...22 KX TG2853BXS KX TG2854BXS KX TGA280BXS 7 1 2 Programming Using the Direct Commands ...
Page 25: ...25 KX TG2853BXS KX TG2854BXS KX TGA280BXS 7 5 Copying Phonebook Items 7 6 Error Message ...
Page 26: ...26 KX TG2853BXS KX TG2854BXS KX TGA280BXS 7 7 Troubleshooting ...
Page 27: ...27 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 28: ...28 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 29: ...29 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 30: ...30 KX TG2853BXS KX TG2854BXS KX TGA280BXS 8 Test Mode 8 1 Test Mode Function Base Unit ...
Page 44: ...44 KX TG2853BXS KX TG2854BXS KX TGA280BXS 11 1 2 Handset ...
Page 45: ...45 KX TG2853BXS KX TG2854BXS KX TGA280BXS 11 1 3 Charger Unit ...
Page 46: ...46 KX TG2853BXS KX TG2854BXS KX TGA280BXS 11 2 Fix the LCD to the Main P C Board Handset ...
Page 57: ...57 KX TG2853BXS KX TG2854BXS KX TGA280BXS Memo ...
Page 62: ...62 KX TG2853BXS KX TG2854BXS KX TGA280BXS Memo ...
Page 80: ...80 KX TG2853BXS KX TG2854BXS KX TGA280BXS 16 3 Cabinet and Electrical Parts Charger Unit ...
Page 82: ...82 KX TG2853BXS KX TG2854BXS KX TGA280BXS 16 4 2 KX TG2854BXS ...
Page 83: ...83 KX TG2853BXS KX TG2854BXS KX TGA280BXS 16 4 3 KX TG280BXS ...
