DSP-AX2
DSP-AX2
28
IC526 : M30802SGP (FUNCTION P.C.B.)
16 bit µ-COM (CPU)
No. PORT Name Function
Power On Power Off Backup
1 TXD4 TXDR 232C Transmission Data O OL OL
2 P95 RTS 232C RTS out I/O OL OL
3 CTS4 CTS 232C CTS input I I OL
4 DA0 FAN Fan Control I I OL
5 P92 SDTN SDT for Non Audio SO OL OL
6 P91 RXRDS RDS Reception/Frequency Switch (Not used: H, Fixed) I I
7 P90 SCKN SCK for Non Audio SCK OL OL
8 P146 I/E Internal/External Synchronous output O OL OL
9 P145 CEB CE for BU2092/ZONE2 function (0: Not, Fixed) O OL OL
10 P144 /FLR FL IC Reset O OL OL
11 P143 CEM0 CE for FL1 O OL OL
12 P142 CEM1 CE for FL2 O OL OL
13 P141 RDSE CE for RDS/RDS function (Not used: open) O OL OL
14 P140 CES CE for On Screen/Video format (0: NTSC, 1: PAL) O OL OL
15 BYTE BYTE External data bus width select input (16bit width: VSS) VSS VSS VSS
16 CNVSS CNVSS
Microprocessor mode select input (Microprocessor mode: VCC)
VCC VCC VCC
17 P87 MODEL Model detect (0 : RX-V3000, 1 : DSP-AX2) I I OL
18 P86 BOOT 232C Boot terminal (Not used) I I OL
19 RESET /RES Reset input --- --- ---
20 XOUT XO Clock output --- --- ---
21 VSS VSS Ground --- --- ---
22 XIN XI Clock input --- --- ---
23 VCC VCC + 5V --- --- ---
24 NMI NMI Not used (pull-up VCC) --- --- ---
25 INT2 REM Remote in (Low Edge : Interrupt) I I OL
26 INT1 PSW Power Switch (High Edge : Interrupt) I I OL
27 INT0 PDT Power Detect (Low Edge : Interrupt) I I I
28 P81 VSY Video Vertical Sync I I OL
29 P80 /ICD IC for YSS928/DA/DF/CODEC/DEM O OL OL
30 P77 RXDR 232C Reception Data (Connection pin 144) I I OL
31 P76 DMT Digital Full Mute O OL OL
32 P75 INT928 YSS928 IPINT/MUTE/DIR I I OL
33 P74 Unconnected O OL OL
34 P73 CEP CE for Tuner PLL IC (Not used: open) O OL OL
35 P72 SCKP SCK for Tuner PLL IC (Not used: open) O OL OL
36 P71 RDTP Reception Data for Tuner PLL IC (Not used: open) I I OL
37 P70 SDTP Transmission Data for Tuner PLL IC (Not used: open) O OL OL
38 P67 SDM Transmission Data for YSS928 SO OL OL
39 VCC VCC + 5V --- --- ---
40 P66 SDD Reception Data for YSS928 SI I OL
41 VSS VSS Ground --- --- ---
42 P65 SCK CLK for YSS928 SCK OL OL
43 P64 CSY CE for YSS928 O OL OL
44 P63 DTC SDT for CS3310 SO OL OL
45 P62 CEC CE for CS3310 O OL OL
46 P61 CKC SCK for CS3310 SCK OL OL
47 P60 CSV Power control for CS3310 O OL OL
48 P137 /CSM Reset for CS3310 O OL OL
49 P136 VRB Volume Rotary B I I OL
50 P135 VRA Volume Rotary A I I OL
51 P134 PRI I Protection I I I
52 /RDY /RDY
While the input level of the RDY pin is "L", the microcomputer is in the ready state
--- --- HI
53 ALE ALE Unconnected --- --- HI
54 /HOLD /HOLD
While the input level at the HOLD pin is "L", the microcomputer is placed in the hold state
--- --- HI
55 /HLDA HLDA Unconnected --- --- HI
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