Yamaha DM2000 Service Manual page 65

YM6604C-S (XU240A00) ACIA (Asynchronous Communication Interface Adapter)
PIN
NAME I/O
NO.
1 RESETN I Reset
2 NC Not used
3 CSN I Chip select
4 ASN I Address strobe
5 LDSN I Data strobe
6 A1P I Address bus
7 NC Not used
8 A2P I
Address bus
9 A3P I
10 NC Not used
11 A4P I Address bus
12 NC
Not used
13 NC
14 A5P I Address bus
15 V Ground
SS
16 NC Not used
17 CLKP I System clock
18 RW I Read / Write
19 NC Not used
20 DTACKN O Data acknowledge
21 V Ground
SS
22 D0P I/O
23 D1P I/O Data bus
24 D2P
I/O
25 NC
Not used
26 NC
27 D3P I/O Data bus
28 V Ground
SS
29 D4P I/O
30 D5P I/O
Data bus
31 D6P I/O
32 D7P I/O
33 V Ground
SS
34 FC0P I
Function code
35 FC1P I
36 NC Not used
37 FC2P I Function code
38 NC Not used
39 IACKON O Interrupt acknowledge
40 V Power supply +5V
DD
41 NC Not used
42 MODEP I CPU select
43 NC Not used
44 IPL0N O
45 IPL1N O Interrupt control
46 IPL2N O
47 IRQ1N I
Interrupt request
48 IRQ2N I
49 NC
Not used
50 NC
FUNCTION
PIN
NAME I/O
NO.
51 NC Not used
52 IRQ3N I
Interrupt request
53 IRQ4N I
54 NC Not used
55 IRQ5N I
56 IRQ6N I Interrupt request
57 IRQ7N I
58 TXD1P O Transmit data (1ch)
59 RXD1P I Receive data (1ch)
60 NC Not used
61 RTS1N O Request to send (1ch)
62 NC Not used
63 CTS1N I Clear to send (1ch)
64 NC Not used
65 DCD1N I Data carrier detect (1ch)
66 V Ground
SS
67 NC Not used
68 TXD2P O Transmit data (2ch)
69 RXD2P I Receive data (2ch)
70 NC Not used
71 RTS2N O Request to send (2ch)
72 CTS2N I Clear to send (2ch)
73 DCD2N I Data carrier detect (2ch)
74 NC
Not used
75 TXD3P O Transmit data (3ch)
76 NC
Not used
77 NC
78 RXD3P I Receive data (3ch)
79 RTS3N O Request to send (3ch)
80 NC Not used
81 CTS3N I Clear to send (3ch)
82 TXD4P O Transmit data (4ch)
83 NC Not used
84 RXD4P I Receive data (4ch)
85 RTS4N O Request to send (4ch)
86 NC Not used
87 CTS4N I Clear to send (4ch)
88 V Power supply +5V
DD
89 NC Not used
90 TXD5P O Transmit data (5ch)
91 NC Not used
92 RXD5P I Receive data (5ch)
93 TXD6P O Transmit data (6ch)
94 RXD6P I Receive data (6ch)
95 V Ground
SS
96 FSP I Counter clock
97 XCLK2P I
Transmission clock
98 XCLK1P I
99 NC
Not used
100 NC
DM2000
DSP: IC703
FUNCTION
65