Service manual

CD-BK2100V
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1 VDD — Digital supply.
2-5 HD7-HD4 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).
6 GND — Ground
7-10 HD3-HD0 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).
11,12 GND — Ground
13 X1 Input To connect a 27 MHz oscillator.
Open when not using.
14 X2 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.
15 VDD — Digital supply.
16 CKSEL Input Select a clock to be input to X2 terminal.
Use CKSEL = High: oscillator.
CKSEL = Low : 27 MHz clock input.
17 VDD — Digital supply.
18 GND — Ground
19 HCS Input Chip select signal.
20 HRD Input Read strobe signal.
21 HWR Input Write strobe signal.
22 HA Input Address / address strobe signal.
23 HSELX Input Host interface select signal.
Select a serial interface or an 8-bit parallel interface.
HSELX = High: parallel interface.
HSELX = Low: serial interface.
24 HSELA 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.
25 VDD — Digital supply.
26 GND — Ground
27 RESET Input Reset terminal.
28 HDAK Output Host bus acknowledge signal.
29 INT Output Interrupt signal.
30 GND — Ground
31 AUCLK Input Audio clock (16.9344 MHz).
32 AUBCK Output Audio bit clock.
33 AULRCK Output Audio L/R clock.
34 AUEMPH Output Audio emphasis signal.
35 AUDO Output Audio data output.
36 VDD — Digital supply.
37 GND — Ground
38-42 MA8-MA4 Output DRAM address bus.
MA8 = MSB, MAO = LSB.
43 GND — Ground
44 VDD — Digital supply.
45-48 MA3-MA0 Output DRAM address bus.
MA8 = MSB, MA0 = LSB.
49 MRAS Output DRAM low address strobe signal.
50 GND — Ground
51 VDD — Digital supply.
ICV2 VHiD61012GC-1: MPEG Decoder (D61012GC) (1/2)
Pin No. FunctionTerminal Name Input/Output