Sony UDA-1 Service Manual page 58

UDA-1
Pin No. Pin Name
60 AVCC
61 AVRH
62 AVSS
63 TEMP1
64 NC
65 POWER_KEY
66 A_SEL1
67 NC
68 CPU_MUTE
69 SPK_RY
70 HP_RY
71 FLASH_CLK
72 SO
73 SI
74 SP_LEVEL
75 VSS
76 VCC
77 NC
78 TCK
79 TDI
80 TMS
81 TDO
82 LINE_OUT_MUTE
83 EVOL_DATA
84 EVOL_CLK
85 VOL DATA
86 CS
87 M_VOL UP
88 M_VOL DOWN
89 PROTECT
90 AC_CUT
91 POWER_RY
92 HP_DET
93 NC
94 E2P_SDA
95 E2P_SCL
96 NC (PULL DOWN)
97 VCC
98, 99 NC
100 VSS
58
I/O
- Power supply terminal (+3.3V)
I Reference voltage (+3.3V) input terminal
- Ground terminal
I Thermal detection signal input terminal
- Not used
I Power switch input terminal
O Relay drive signal (for line in/digital in selection) output terminal
- Not used
O CPU muting signal output terminal
O Relay drive signal (for speaker) output terminal
O Relay drive signal (for headphone) output terminal
I Clock signal input terminal (for fl ash programing)
O Serial data output to the USB controller
I Serial data input from the USB controller
I Speaker output level detection signal input terminal
- Ground terminal
- Power supply terminal (+3.3V)
- Not used
I Test clock signal input terminal (for JTAG)
I Test data input terminal (for JTAG)
I Test mode selection signal input terminal (for JTAG)
O Test data output terminal (for JTAG)
O Muting signal output terminal
O Serial data output to the electrical volume
O Serial data transfer clock signal output to the electrical volume
I Volume knob position detection signal input terminal
O Latch signal output to the electrical volume
O Motor volume up signal output to the volume control
O Motor volume down signal output to the volume control
I Protect detection signal input terminal
I AC cut detection signal input terminal
O Relay drive signal (for main power) output terminal
I Headphone plug insert detection signal input terminal
- Not used
I/O Two-way serial data bus with the EEPROM
O Serial data transfer clock signal output to the EEPROM
- Fixed at "L" in this unit
- Power supply terminal (+3.3V)
- Not used
- Ground terminal
Description
"H": muting
"H": relay on
"H": relay on
Not used
"H": muting
"H": volume up
"H": volume down
"L": protect
"H": AC cut
"H": relay on
"H": headphone plug is inserted
"L": digital in, "H": line in