Epson Powerspan Manuale informativo sul prodotto - Pagina 6
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EPSON PowerSpan
CPU card connector pin assignments (continued)
37
Status 2
39
Ground
41
CAS Latch Even
43
CAS Latch Odd
45
Ground
47
Byte Enable 1
49
Byte Enable 3
69
73
Address Bit 19
Address Bit 21
75
Address Bit 23
77
79
61
Address Bit 25
83
85 I Ground
91 I Ground
CPU Card Power Supply and Ground Connectors
Pin 1
Pin 2
Epson PowerSpan-6
Ground
40
Ground
42
44
Odd Memory Bank Select
Even Memory Bank Select
46
Ground
48
50
Byte Enable 0
Address Bit 16
74
76
Address Bit 16
76
60
Address Bit 20
62
Address Bit 22
Pin 5
Pin 6
CPU cd power supply and
Pin Signal
1
2
Ground
DMA Channels
1
DMA channels
System Interrupts
System interrupts
NMI Parity error
0
Reserved, interval timer
1
Reserved, keyboard buffer full
2
Reserved, cascade interrupt from stave PIC
3
4
5
LPT2, if enabled
6
7
8
Real-time dock (RTC)
9
User definable; can be set for EISA option cards using the ECU
10
COM3, if enabled; can be set for E ISA option cards using the ECU
11
12
13
Resewed, math coprocessor
14
IDE hard drive controller, if enabled
15
User definable; can be set for EISA option cards using the ECU
Input/output Addresses
Input/output adddrt3st3
Pin Signal
Pin Signal
3
5
4
Ground
6
Ground