RI7SM User’s Manual
25
J12: VGA CRT Connector
J12 is a 15-pin header for an external VGA CRT female connector.
Signal Name
Pin
Pin
Signal Name
Red
1
9
Vcc
Green
2
10
GND
Blue
3
11
N.C.
N.C.
4
12
SDA
GND
5
13
H-Sync
GND
6
14
V-Sync
GND
7
15
SCL
GND
8
16
N.C.
J13: 82559B LAN Output Connector
J13 is 82559B connector which is for the external LAN connector. Mungo540
supports both 10Mbps and 100Mbps LAN facilities.
Signal Name
Pin #
Pin #
Signal Name
3VSB
1
6
ACT LED
RX+
2
7
RX-
Link LED
3
8
GND
3VSB
4
9
GND
J13
TX+
5
10
T X-
J14: Parallel Port Connector
The following table describes the pin out assignments of this connector.
Signal Name
Pin #
Pin #
Signal Name
Line printer strobe
1
14
AutoFeed
PD0, parallel data 0
2
15
Error
PD1, parallel data 1
3
16
Initialize
PD2, parallel data 2
4
17
Select
PD3, parallel data 3
5
18
Ground
PD4, parallel data 4
6
19
Ground
PD5, parallel data 5
7
20
Ground
PD6, parallel data 6
8
21
Ground
PD7, parallel data 7
9
22
Ground
ACK, acknowledge
10
23
Ground
Busy
11
24
Ground
Paper empty
12
25
Ground
J14
Select
13
N/A
N/A
Содержание Mungo540
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Страница 90: ...82 Mungo540 User s Manual Appendix A I O Port Address Map B Interrupt Request Lines IRQ...
