Sony CDX-GT878US - Page 35

CDX-GT828U/GT870US/GT878US
35
Pin No. Pin Name I/O Description
53 TEL_ATT I Telephone attenuator detection signal input
54 TEST_IN I Test mode detection signal input (Open)
55 RC_IN1 I Rotary commander shift key signal input
56 SYSRESET O System reset signal output
57 BUS_ON O Bus ON signal output
58 FSW OUT O DC-DC converter oscillation frequency serection signal output
59 B-OUTSEL I
Black out mode with/without setting signal input (L: without black out mode (CDX-GT828U),
H: with black out mode (CDX-GT870US/GT878US))
60 VCC2 ― Power supply pin (+3.3 V)
61 NC O Not used. (Open)
62 VSS ― Ground
63 IPOD_DET I Not used. (Open)
64 IPOD_CHARGE O Not used. (Open)
65 VBUS_ON O VBUS control request signal input (L: VBUS OFF request, H: VBUS ON request)
66 CHG-CHK I Not used. (Open)
67, 68 NC O Not used. (Open)
69 USB_ON O
USB power supply control signal output (L: USB power supply OFF, H: USB power supply
ON)
70 DST_SEL1 I Destination setting pin (Fixed at L)
71 DST_SEL2 I Destination setting pin (L: CDX-GT870US/GT878US, H: CDX-GT828U)
72 FL_ON O FL power supply control signal output (L: FL power supply ON, H: FL power supply OFF)
73 BU_IN I Back-up power supply detection signal input
74 FLD_ON O FL driver power supply ON/OFF signal output
75 HS_EN O Highside switch control signal output (L: VBUS power shut-down, H: VBUS power supply)
76 HS_OC I Highside switch over-current detection signal input
77 RE_1 I Rotary encoder signal input 1
78 RE_0 I Rotary encoder signal input 0
79 NOSE I Front panel detachable detection signal input (L: with front panel, H: without front panel)
80, 81 NC O Not used. (Open)
82 QUALITY I Tuner noise detection signal input
83 VSM I S meter voltage detection signal input
84 KEY_IN0 I Key signal input
85 SP_IN I Spectrum analyzer signal input
86 RC_IN0 I Rotary commander key signal input
87 KEY_ACK2 I Rotary commander key acknowledge detection signal input
88 KEY_ACK0 I Key acknowledge detection signal input
89 NC O Not used. (Open)
90 DISP_RESET O Display reset signal output
91 DOOR I Front panel open/close detection signal input (L: front panel close, H: front panel open)
92 NC O Not used. (Open)
93 DISP_CE O Display chip enable signal output
94 AVSS ― Analog ground
95 DOOR_IND O DOOR indicator LED power supply control signal output
96 VREF ― Reference voltage pin for A/D converter. (+3.3 V)
97 AVCC ― Analog power supply pin (+3.3 V)
98 DISP SI/RX I Display communication signal input
99 DISP SO/TX O Display communication signal output
100 DISP CKO O Display communication clock signal output