Yamaha A5000 Service Manual page 11

D65621GF-028-3B9 (XS370A00) SMI
PIN
NO. NAME I/O
1 LMA24 I
2 LMA23 I
3 LMA22 I
4 LMA21 I Low Memory Address
5 LMA20 I
6 LMA19 I
7 LMA18 I
8 HMA24 I
9 HMA23 I High Memory Address
10 HMA22 I
11 HMA21 I
12 GND - Ground
13 HMA20 I
14 HMA19 I High Memory Address
15 HMA18 I
16 RASN I Row Address Strobe
17 H0RAS0 O RAS0 for HiMem SIMM 0
18 H0RAS1 O RAS1 for HiMem SIMM 0
19 GND - Ground
20 H0RAS2 O RAS2 for HiMem SIMM 0
21 H0RAS3 O RAS3 for HiMem SIMM 0
22 GND - Ground
23 VDD - Power Supply
24 L0RAS0 O RAS0 for LoMem SIMM 0
25 L0RAS1 O RAS1 for LoMem SIMM 0
26 GND - Ground
27 L0RAS2 O RAS2 for LoMem SIMM 0
28 L0RAS3 O RAS3 for LoMem SIMM 0
29 GND - Ground
30 VDD - Power Supply
31 H1RAS0 O RAS0 for HiMem SIMM 1
32 H1RAS1 O RAS1 for HiMem SIMM 1
33 GND - Ground
34 VDD - Power Supply
35 H1RAS2 O RAS2 for HiMem SIMM 1
36 H1RAS3 O RAS3 for HiMem SIMM 1
37 GND - Ground
38 L1RAS0 O RAS0 for LoMem SIMM 1
39 L1RAS1 O RAS1 for LoMem SIMM 1
40 GND - Ground
D65611GB-039-3B (XS323A00) ENI
PIN
NO. NAME I/O
1 CLRN I
2 E1A I
3 E1B I
4 E2A I
5 E2B I
6 E3A I
7 E3B I
8 E4A I
9 E4B I
10 E5A I
11 E5B I
12 E6A I
13 E6B I
14 E7A I
15 E7B I
16 VDD -
17 GND -
18 E8A I
19 E8B I
20 P0 I/O
21 P1 I/O
22 P2 I/O
FUNCTION
FUNCTION
Clear Status
Rotary Encoder 1 Input A
Rotary Encoder 1 Input B
Rotary Encoder 2 Input A
Rotary Encoder 2 Input B
Rotary Encoder 3 Input A
Rotary Encoder 3 Input B
Rotary Encoder 4 Input A
Rotary Encoder 4 Input B
Rotary Encoder 5 Input A
Rotary Encoder 5 Input B
Rotary Encoder 6 Input A
Rotary Encoder 6 Input B
Rotary Encoder 7 Input A
Rotary Encoder 7 Input B
Power Supply
Ground
Rotary Encoder 8 Input A
Rotary Encoder 8 Input B
I/O Port
PIN
NO. NAME I/O
41 VDD - Power Supply
42 L1RAS2 O RAS2 for LoMem SIMM 1
43 L1RAS3 O RAS3 for LoMem SIMM 1
44 GND - Ground
45 HDRAS0 O RAS for HiMem DRAM 0
46 HDRAS1 O RAS for HiMem DRAM 1
47 GND - Ground
48 VDD - Power Supply
49 LDRAS0 O RAS for LoMem DRAM 0
50 LDRAS1 O RAS for LoMem DRAM 1
51 LMA1 I Low Memory Address
52 LMA0 I
53 GND - No.53
54 LMA1X O Low Memory Address Exchanged
55 LMA0X O
56 GND - Ground
57 VDD - Power Supply
58 HMA1 I High Memory Address
59 HMA0 I
60 HMA1X O High Memory Address Exchanged
61 HMA0X O
62 D0 I Data Input
63 D1 I
64 GND - Ground
65 D2 I
66 D3 I Data Input
67 D4 I
68 D5 I
69 A2 I Address
70 WRN I Write
71 GND - Ground
72 VDD - Power Supply
73 CSN I Chip Select
74 A0 I Address
75 A1 I
76 MCLK I Clock (37MHz)
77 SYI I Sync Clock (48kHz)
78 HBANK O HiMem Bank Select 01/23
79 LBANK O LoMem Bank Select 01/23
80 REFRN O Refresh Timing
PIN
NO. NAME I/O
23 P3 I/O
24 P4 I/O
25 P5 I/O
26 P6 I/O
27 P7 I/O
28 D0 I/O
29 D1 I/O
30 GND -
31 D2 I/O
32 D3 I/O
33 D4 I/O
34 GND -
35 D5 I/O
36 D6 I/O
37 D7 I/O
38 GND -
39 VDD -
40 A0 I
41 A1 I
42 WRN I
43 RDN I
44 CSN I
A5000/A4000
(IC516)
FUNCTION
(IC11)
FUNCTION
I/O Port
Ground
CPU Data Bus
Ground
CPU Data Bus
Ground
Power Supply
Address Bus
Address Bus
Write Enable
Read Enable
Chip Select
11