
KRF-X9995D/X9995D-S/VR-5700/5900
11
CIRCUIT DESCRIPTION
Port No. Port Name I/O Function ACTIVE
HL
1 ERF I D.I.R. (X08, IC6) error flag.
2 FS96 DET I 96KHz fs detection. H : fs>88.1kHz detection
3 AUTO I Non-PCM detection. H : Non-PCM detection
4 AVSS - GND
5 DIR PD O Power down for D.I.R. (X08, IC6).
L : DIR power down and reset
6 DIR CS O Chip select for D.I.R. (X08, IC6). L : Chip selection
7 AVREF - Reference voltage.
8 DIR DIN I Data input from D.I.R. (X08, IC6).
9 DIR DOUT O Data output for D.I.R. (X08, IC6).
10 DIR CLK O Clock output for D.I.R. (X08, IC6).
11 D MUTE O Mute signal output for D.I.R. (X08, IC6). Data mute
12 DAC PD O Power down for D/A converter (X08, IC11/14/17/20). Power
down
13 DAC 96K O Double speed sampling mode for D/A converter speed mode
(X08, IC11/14/17/20). H : Double
14 DAC MUTE O Mute signal output for D/A converter Mute
(X08, IC11/14/17/20).
15 ADC RST O Reset signal output for A/D converter (X08, IC7). Reset
16 MDT I Main microcomputer master data.
17 SDT O Sub microcomputer data output.
18 MCK I Main microcomputer control data clock
19 MREQ I Main microcomputer master request.
20 SREQ O Main microcomputer slabe request.
21 REC 6dB O Rec gain control when HDCD +6dB. +6dB on
22~24 DSEL A~C O Control port for digital input selector (A~C).
25 DSP POWER O Power supply for DSP/DAC/ADC/DIR.
26 DSP RESET O Reset signal output for DSP.
27~32 DSP D0~D5 I/O DSP control data.
33 VSS - GND
34,35 DSP D6,7 I/O DSP control data.
36 DSP REQ O DSP communication request. Request
37 DSP ACK I Input port of command data reading from DSP. Ack.
38 DSP BUSY I DSP status busy. Busy
39 DSP WRT O DSP Write Data write Data read
40 DTS DET I DSP DTS detection. DTS
41 PCM ZERO I PCM zero data detection. PCM 0
42 HDCD DET I DSP HDCD sync. Detection. HDCD
43 HDCD 6dB DET I DSP HDCD +6dB detection. (KPCM) +6dB
44 OVER LEVEL I DSP over level detection. Over level
45 PCM MUTE O DSP mute control (PCM). Fixed
46 DRIVE O DSP D.R.I.V.E. /HDCD control (PCM). D.R.I.V.E/
HDCD ON
47 SUB MUTE O Sub microcomputer analog mute. Mute on
48~50 C ROOMB(C/B/A) O Zone B video selector control.
51,52 YC SEL(B, A) O Zone A video selector control.
53~59 C ROOMA(A~G) O Zone A video selector control.
60 RESET I Reset signal input.
61 YC MUTE O Zone A video selector (Y/C) mute control.
62 FSC CTRL O Zone A video selector FSC control.
63 VSEL O Zone A video selector control.
64 CTRL A2 O Zone A video selector control A2.
65 CTRL B O Zone A video selector control B.
66 CTRL A O Zone A video selector control A.
8-2 Port Description of Sub Microcomputer : uPD784224K506 (X08,IC43)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299