Panasonic KX-TG2853BXS

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 - - -
2Digital 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