Sony HCD-EC79 - Page 41

HCD-EC69/EC79/EC99
41
USB BOARD IC101 BU81438JKV-E2 (USB CONTROLLER)
Pin No. Pin Name I/O Description
1 RESETX I Reset signal input from the system controller “L”: reset
2 SEL_SLAVE I
Setting terminal for slave mode “L”: slave mode, “H”: stand-alone mode
Fixed at “L” in this set
3 SEL_MP3 I
Setting terminal for MPEG audio layer
“L”: MP1/MP2/MP3 playback, “H”: only MP3 playback Fixed at “L” in this set
4 SEL_DOUT I Setting terminal for digital audio output “L”: output on Fixed at “H” in this set
5 SEL_VOL I
Setting terminal for volume control “H”: volume key command effective
Fixed at “L” in this set
6 SEL_APLAY I
Setting terminal for operation mode when device is recognized “L”: playback, “H”: stop
Fixed at “H” in this set
7 SEL_UTPKT I
Setting terminal for USB test packet output “L”: test packet output, “H”: operation usually
Fixed at “H” in this set
8, 9 TEST1, TEST2 I Setting terminal for test mode Normally fi xed at “H”
10 MCHNG O Not used
11 BUSY O Busy signal output to the system controller
12 SCL I Serial data transfer clock signal input from the system controller
13 SDA I/O Serial data input/output with the system controller
14, 15 A0, A1 I Setting terminal for slave address
16 SEL_SMAN I
Setting terminal for manual mode “L”: manual mode, “H”: auto mode
Fixed at “H” in this set
17 TEST3 I Setting terminal for test mode Normally fi xed at “H”
18 DVDDIO - Power supply terminal (+3.3V)
19 SD_CON I Not used
20 SD_DO I Not used
21 SD_CLK O Not used
22 SD_DI O Not used
23 SD_CS O Not used
24 DVSS - Ground terminal
25 TEST4 I Setting terminal for test mode Normally fi xed at “H”
26 CLKOUT12 O Not used
27 DVDD_M2 I Power supply monitor terminal
28 to 30 TEST6 to TEST8 I Setting terminal for test mode Normally fi xed at “H”
31 ATEST1 O Setting terminal for test mode
32 AVDDC - Power supply terminal (+3.3V)
33, 34 USB_DM, USB_DP I/O Audio serial data input/output with the USB connector
35 AVSS - Ground terminal
36 REXTI O Reference voltage output terminal
37 VOREFI O Setting terminal for test mode
38 VDD_PLL - Power supply terminal (+3.3V)
39 TEST_PLL I Setting terminal for test mode
40 XIN_PLL I System clock input terminal (16.9344 MHz)
41 XOUT_PLL O System clock output terminal (16.9344 MHz)
42 VSS_PLL - Ground terminal
43 DAVSS - Ground terminal
44 RDACO O Audio serial data output terminal (R-ch)
45 VCDACO O Reference voltage output terminal
46 LDACO O Audio serial data output terminal (L-ch)
47 DAVDD - Power supply terminal (+3.3V)
48 AMUTE O Audio muting on/off control signal output terminal “L”: muting on Not used
49 to 52 TEST9 to TEST12 O Setting terminal for test mode Normally fi xed at “H”
53 LRCK O L/R sampling clock signal output terminal Not used
54 BCK O Bit clock signal output terminal Not used
55 DATA O Digital audio data output terminal Not used
56 TEST13 I Setting terminal for test mode Normally fi xed at “H”
57 DVDD_M1 I Power supply monitor terminal
58 TEST14 I Setting terminal for test mode Normally fi xed at “L”
59 to 61 TEST15 to TEST17 I Setting terminal for test mode Normally fi xed at “H”