Yamaha CDR-HD1000 Service Manual page 22

CDR-HD1000
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No. Name I/O
56 DD1 I/O
57 DD0 I/O
58 VDD
59 /HRST OT
60 /HCS1 OT
61 /HCS0 OT
62 HA2 OT
63 HA1 OT
64 HA0 OT
65 /H10W OT
66 /H10R OT
67 CSEL OT
68 IORDY
69 /HDACK OT
70 HINTRQ
71 /PDIAG OD
72 /DASP OD
73 HDMARQ
74 VSS
75 SENDA
76 RTRNA
77 SENDB
78 RTRNB
79 SDO
80 SDI
81 VSS
82 RD15 I/O
TE
L 13942296513
83 RD14 I/O
84 RD13 I/O
85 RD12 I/O
86 RD11 I/O
87 RD10 I/O
88 RD9 I/O
89 RD8 I/O
90 VSS
91 RD7 I/O
92 RD6 I/O
93 RD5 I/O
94 RD4 I/O
95 RD3 I/O
96 RD2 I/O
97 RD1 I/O
98 RD0 I/O
99 VDD
100 RA12
101 RA11
102 RA10
103 RA9
104 RA8
105 RA7
106 VSS
www
107 RA6
108 RA5
109 RA4
.
110 RA3
111 RA2
112 RA1
113 RA0
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DC Level Function
T/C IDE bus interface, data bus
T/C IDE bus interface, data bus
Power supply +5V
C IDE bus interface, reset output
C IDE bus interface, chip select output
C IDE bus interface, chip select output
C IDE bus interface, address output
C IDE bus interface, address output
C IDE bus interface, address output
C IDE bus interface, write strobe output
C IDE bus interface, read strobe output
C IDE bus interface, cable select output
I T IDE bus interface, channel ready input
C IDE bus interface, DMA acknowledge output
I T IDE bus interface, interrupt request input
C IDE bus interface, connection diagnosis output
C IDE bus interface, active slave output
I T IDE bus interface, DMA request input
GND
O C DSP3 serial data interface output 1
I+ T DSP3 serial data interface input 1
O C DSP3 serial data interface output 2
I+ T DSP3 serial data interface input 2
O C Serial audio data output
I T Serial audio data input
GND
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
GND
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
T/C External RAM interface, data bus
Power supply +5V
O C External RAM interface, address output
O C External RAM interface, address output
O C External RAM interface, address output
O C External RAM interface, address output
O C External RAM interface, address output
O C External RAM interface, address output
GND
O C External RAM interface, address output
x ao
O C External RAM interface, address output y
O C External RAM interface, address output
i
O C External RAM interface, address output
O C External RAM interface, address output
O C External RAM interface, address output
O C External RAM interface, address output
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