Icv2 Vhid61012Gc-1: Mpeg Decoder (D61012Gc) - Sharp CD-BK1600V Service Manual

CD-BK1600V/1800V/190V

ICV2 VHiD61012GC-1: MPEG Decoder (D61012GC) (1/2)

Pin No. Terminal Name Input/Output
1 V
DD
2-5 HD7-HD4
6 GND
7-10 HD3-HD0
11,12 GND
13 X1
14 X2
15 V
DD
16 CKSEL
17 V
DD
18 GND
19 HCS
20 HRD
21 HWR
22 HA
23 HSELA
24 HSELA
25 V
DD
26 GND
27 RESET
28 HDAK
29 INT
30 GND
31 AUCLK
32 AUBCK
33 AULRCK
34* AUEMPH
35 AUDO
36 V
DD
37 GND
38-42 MA8-MA4
43 GND
44 V
DD
45-48 MA3-MA0
49 MRAS
50 GND
51 V
DD
— Digital supply.
Input/Output Host data bus.
HD7 = MSB, HDO = LSB.
Internally pulled down. Pull down resistance = approx. 42 kohms.
Can quit this pull down with the HD_PD_OFF register (74H, bo).
— Ground
Input/Output Host data bus.
HD7 = MSB, HD0 = LSB
Internally pulled down. Pull down resistance is approx. 42 kohms.
Can quit this pull down with the HD_PD_OFF register (74H, bo).
— Ground
Input To connect a 27 MHz oscillator.
Open when not using.
Input To connect a 27 MHz oscillator or input 27 MHz clock.
Set the clock at CKSEL terminal.
Signal input at 3.3 Vp-p.
— Digital supply.
Input Select a clock to be input to X2 terminal.
Use CKSEL = High: oscillator.
CKSEL = Low : 27 MHz clock input.
— Digital supply.
— Ground
Input Chip select signal.
Input Read strobe signal.
Input Write strobe signal.
Input Address / address strobe signal.
Input Host interface select signal.
Select a serial interface or an 8-bit parallel interface.
HSELX = High: parallel interface.
HSELX = Low: serial interface.
Input Host interface mode select signal.
Select multiplex mode or separate mode.
HSELA = High: multiplex mode.
HSELA = Low: separate mode.
Fixed low when using serial interface.
— Digital supply.
— Ground
Input Reset terminal.
Output Host bus acknowledge signal.
Output Interrupt signal.
— Ground
Input Audio clock (16.9344 MHz).
Output Audio bit clock.
Output Audio L/R clock.
Output Audio emphasis signal.
Output Audio data output.
— Digital supply.
— Ground
Output DRAM address bus.
MA8 = MSB, MAO = LSB.
— Ground
— Digital supply.
Output DRAM address bus.
MA8 = MSB, MA0 = LSB.
Output DRAM low address strobe signal.
— Ground
— Digital supply.
Function
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