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MDS-NT1
• MAIN BOARD IC301 CXD1873R (NET MD SECURITY, DIGITAL SIGNAL PROCESSOR, USB INTERFACE)
Pin No. Pin Name I/O Description
1 VDEA0
— Power supply terminal (+3.3V) (for DSP)
2 VSEA0
— Ground terminal (for DSP)
3 PLLSW
I PLL function on/off control signal input from the system controller “L”: PLL on
4 TEST0
I Test input terminal Normally fixed at “L”
5 DSPCLK
I DSP transfer clock signal input terminal (256Fs: 11.2896MHz)
6VDC0
— Power supply terminal (+3.3V)
7 DSPIF0
O Digital audio signal output terminal when recording mode
8 DSPIF1
O L/R sampling clock signal (44.1 kHz) output terminal
9 VDEA1
— Power supply terminal (+3.3V) (for DSP)
10 DSPIF2
O Bit clock signal (2.8224 MHz) output terminal
11 DSPIF3
O Recording data output terminal
12 VDC1
— Power supply terminal (+3.3V)
13 VSC0
— Ground terminal
14 EXTIF0
I/O Not used
15 EXTIF1
I/O Not used
16 VDEA2
— Power supply terminal (+3.3V) (for DSP)
17 VSEA1
— Ground terminal (for DSP)
18 EXTIF0
I/O Not used
19 EXTIF1
I/O Not used
20 VDC2
— Power supply terminal (+3.3V)
21 VSC1
— Ground terminal
22 DNKCK O
Serial ROM clock signal output terminal Not used
23 DNKCS O
Serial ROM chip select signal output terminal Not used
24 VDEA3
— Power supply terminal (+3.3V) (for DSP)
25 VSEA2
— Ground terminal (for DSP)
26 DNKSO O
Serial ROM data output terminal Not used
27 DNKSI I
Serial ROM data input terminal Not used
28 DNKST I
Serial ROM status input terminal Not used
29 VDC3
— Power supply terminal (+3.3V)
30 VSC2
— Ground terminal
31 DNKRS I
Serial ROM reset signal input terminal Not used
32 TEST1
I Test input terminal Normally fixed at “L”
33 VDEA4
— Power supply terminal (+3.3V) (for DSP)
34 PLLTHRU
I Not used
35 USBEN
I USB enable signal input terminal
36 VDC4
— Power supply terminal (+3.3V)
37 VSC3
— Ground terminal
38 USBVSS
— Ground terminal (for USB)
39 DP
I/O USB communication input/output
40 DM
I/O USB communication input/output
41 USBVDD
— Power supply terminal (+3.3V) (for USB)
42 USBSW O
USB communication on/off control signal output “H”: USB communication on
43 PLLVDD
— Power supply terminal (+3.3V) (for USB)
44 PLLVSS
— Ground terminal (for USB)
45 OSCVDD
— Power supply terminal (+3.3V) (for OSC)