Panasonic KX-TG5771BXS, Service Manual, Page: 107 / 123

107
KX-TG5771BXS/KX-TGA570BXS
15 Appendix Information of Schematic Diagram
15.1. CPU Data (Base Unit)
15.1.1. IC501
Note:
• Data in the blank colums are omitted because of the Analog
I/O.
PIN Description I/O High High_Z Low
1 GNDPA GND
2 SPOUTP A.O
3 BCLK A.O
4 TXMOD A.O
5 RSSI A.I
6 XIN A.I
7 XOUT A.O
8 VDD VDD
9 VCCIN VCC
10 GND GND -- -- GND
11 Reset D.I Normal -- Reset
12 FLASH_RST D.O High -- Low
13 FLASH_SO D.O High -- Low
14 FLASH_SI D.I High -- Low
15 FLASH_CS D.O High -- Low
16 NC D.O -- -- --
17 SYN_OUT D.I High -- Low
18 TX_DATA D.O High -- Low
19 PA_CONT D.O High -- Low
20 SYN_LE2 D.O Latch -- Normal
21 AC_DOWN_DET D.I High -- Low
22 RF_RST D.O Normal -- Reset
23 RADIO_EN D.O Active -- Not
24 SHCTRL D.O Active -- Not
25 ANT0 D.O On -- Off
26 GND GND -- -- GND
27 VCC VCC VCC -- --
28 SYN_LE1 D.O Latch -- Normal
29 SYN_CLK D.O High -- Low
30 SYN_DATA D.O High -- Low
31 RXEN D.O Active -- Off
32 TXEN D.O Active -- Off
33 RXGAIN D.O High -- Low
34 RXI D.I High -- Low
35 SEG12 D.O High -- Low
36 SEG11 D.O High -- Low
37 SEG10 D.O High -- Low
38 SEG9 D.O High -- Low
39 SEG8 D.O High -- Low
40 SEG7 D.O High -- Low
41 SEG6 D.O High -- Low
42 SEG5 D.O High -- Low
43 SEG4 D.O High -- Low
44 SEG3 D.O High -- Low
45 SP_LED D.I.O -- Off On
46 GND GND -- -- GND
47 VCC VCC VCC -- --
48 INT0(NC) D.I.O -- -- --
49 FLASH_SCK D.O High -- Low
50 KEY_STB_F D.O -- Not Active
51 KEY_STB_E D.O -- Not Active
52 KEY_STB_D D.O -- Not Active
53 KEY_STB_C D.O -- Not Active
54 KEY_STB_B D.O -- Not Active
55 KEY_STB_A D.O -- Not Active
56 LINE_SZ D.O On -- Off
57 RLY D.O Off Hook -- On Hook
58 BELL D.I OFF -- ON
59 NC D.O Off Hook -- On Hook
60 KEY_IN6 D.I Non -- Key In
61 KEY_IN5 D.I Non -- Key In
62 KEY_IN4 D.I Non -- Key In
63 KEY_IN3 D.I Non -- Key In
64 KEY_IN2 D.I Non -- Key In
65 KEY_IN1 D.I Non -- Key In
66 GND GND -- -- GND
67 VCC VCC VCC -- --
68 TCK D.I -- -- --
69 TMS D.I -- -- --
70 TDI D.I -- -- --
71 TD0 D.O -- -- --
72 NC D.O -- -- --
73 CHG_DET D.I Off Charge -- On Charge
74 NC D.I.O -- -- --
75 COM1 D.I.O High Middle Low
76 COM2 D.I.O High Middle Low
77 INT1 D.O High -- Low
78 NC D.I.O -- -- --
79 INUSE_LED D.I.O -- Off On
80 ANS_LED D.I.O -- Off On
81 UART_TX D.O -- -- --
82 UART_RX D.I -- -- --
83 MSG_LED D.I.O -- Off On
84 GND GND -- -- GND
85 PDN A.I
86 IBAT A.I
87 VREF A.O
88 MIP A.I
89 MIN A.I
90 DCIN2 A.I
91 NC D.O
92 GNDA GND
93 HSMIP A.I
94 HSMIN A.I
95 VCCA VCC
96 Headset_MIC_in A.I
97 LOUT0 A.O
98 HSSPOUT A.O
99 VCCA VCC
100 SPOUTN A.O
PIN Description I/O High High_Z Low