Sony 486DX Manual Do Utilizador
AR-B1474 User¡
¦s Guide
2-5
2.3.4 ISA Bus Pin Assignment
I/O Pin
Signal Name Input/Output
I/O Pin Signal Name Input/Output
A1
-IOCHCK
Input
B1
GND
Ground
A2
SD7
Input/Output
B2
RSTDRV
Output
A3
SD6
Input/Output
B3
+5V
Power
A4
SD5
Input/Output
B4
IRQ9
Input
A5
SD4
Input/Output
B5
-5V
Power
A6
SD3
Input/Output
B6
DRQ2
Input
A7
SD2
Input/Output
B7
-12V
Power
A8
SD1
Input/Output
B8
-ZWS
Input
A9
SD0
Input/Output
B9
+12V
Power
A10
IOCHRDY
Input
B10
GND
Ground
A11
AEN
Output
B11
-SMEMW
Output
A12
SA19
Input/Output
B12
-SMEMR
Output
A13
SA18
Input/Output
B13
-IOW
Input/Output
A14
SA17
Input/Output
B14
-IOR
Input/Output
A15
SA16
Input/Output
B15
-DACK3
Output
A16
SA15
Input/Output
B16
DRQ3
Input
A17
SA14
Input/Output
B17
-DACK1
Output
A18
SA13
Input/Output
B18
DRQ1
Input
A19
SA12
Input/Output
B19
-REFRESH
Input/Output
A20
SA11
Input/Output
B20
BUSCLK
Output
A21
SA10
Input/Output
B21
IRQ7
Input
A22
SA9
Input/Output
B22
IRQ6
Input
A23
SA8
Input/Output
B23
IRQ5
Input
A24
SA7
Input/Output
B24
IRQ4
Input
A25
SA6
Input/Output
B25
IRQ3
Input
A26
SA5
Input/Output
B26
-DACK2
Output
A27
SA4
Input/Output
B27
TC
Output
A28
SA3
Input/Output
B28
BALE
Output
A29
SA2
Input/Output
B29
+5V
Power
A30
SA1
Input/Output
B30
OSC
Output
A31
SA0
Input/Output
B31
GND
Ground
Table 2-4 ISA Bus Pin Assignment
I/O Pin
Signal Name Input/Output I/O Pin Signal Name
Input/Output
C1
SBHE
Input/Output
D1
-MEMCS16
Input
C2
LA23
Input/Output
D2
-IOCS16
Input
C3
LA22
Input/Output
D3
IRQ10
Input
C4
LA21
Input/Output
D4
IRQ11
Input
C5
LA20
Input/Output
D5
IRQ12
Input
C6
LA19
Input/Output
D6
IRQ15
Input
C7
LA18
Input/Output
D7
IRQ14
Input
C8
LA17
Input/Output
D8
-DACK0
Output
C9
-MEMR
Input/Output
D9
DRQ0
Input
C10
-MEMW
Input/Output
D10
-DACK5
Output
C11
SD8
Input/Output
D11
DRQ5
Input
C12
SD9
Input/Output
D12
-DACK6
Output
C13
SD10
Input/Output
D13
DRQ6
Input
C14
SD11
Input/Output
D14
-DACK7
Output
C15
SD12
Input/Output
D15
DRQ7
Input
C16
SD13
Input/Output
D16
+5V
Power
C17
SD14
Input/Output
D17
-MASTER
Input
C18
SD15
Input/Output
D18
GND
Ground
Table 2-5 ISA Bus Pin Assignment