Sharp CD-DVD500 Service Manual page 67

IC3508 RH-iX1761GEZZ: Track Buffer Interface (IX1761GE) (1/2)
Pin No.
Terminal Name
1 VDD1
2 HADR0
3 HADR1
4 HADR2
5 HADR3
6 HADR4
7 HADR5
8 HADR6
9 HADR7
10 VSS
11 VDD1
12 HDAT0
13 HDAT1
14 HDAT2
15 HDAT3
16 HDAT4
17 HDAT5
18 HDAT6
19 HDAT7
20 HRD
21 HWR
22 HAS
23 HCS1
24 HCS2
25 VSS
26 VDD1
27 HWAIT
28 HINT
29 VSS
30-38 PDO[0]-[8]
39 VSS
40 VDD1
41 PSYCO
42 PDRQO
43 PDCKO
44 VSS
45 VDD2
46 DVDREQ
47 PDCKI
48 PDRQI
49 PSYCI
50 VSS
51 VDD2
52-60 PDI[8]-[0]
61 VSS
62 VDD1
63 VSS
64 VDD2
65-72 5VBUS[7]-[0]
73*,74* N.C.
75 VSS
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
Input Digital power supply +3.3 V.
Input CPU Address bus.
Input CPU Address bus.
Input CPU Address bus.
Input CPU Address bus.
Input CPU Address bus.
Input CPU Address bus.
Input CPU Address bus.
Input CPU Address bus.
— Digital GND.
Input Digital power supply +3.3 V.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input/Output CPU Data bus.
Input CPU Read signal.
Input CPU write signal.
Input CPU address strobe.
Input CPU chip select signal 1. (Track Buffer Operation)
Input CPU chip select signal 2. (bus Voltage Transfer)
— Digital GND.
Input Digital power supply +3.3 V.
Output CPU wait signal. (Open drain)
Output CPU interrupt signal. (Open drain)
— Digital GND.
Output Output DVD/CDdata.
— Digital GND.
Input Digital power supply +3.3 V.
Output Output data selector sync signal.
Output Output data transfer block signal.
Output Output data transfer clock.
— Digital GND.
Input Digital power supply +5 V.
Input Request signal input.
Input Input data transfer clock.
Input Input data transfer block signal.
Input Input data selector sync signal.
— Digital GND.
Input Digital power supply +5 V.
Output Input DVD/CD data.
— Digital GND
Input Digital power supply +3.3 V.
— Digital GND.
Input Digital power supply +5 V.
Input/Output CPU bus 5 V conversion input/output.
— —
— Digital GND.
Function
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CD-DVD500