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9 FRONT PANEL
9.1 VFD CONTROLLER
The VFD controller is a NEC uPD 16311. This controller is not a processor, but does
include a simple state machine which scans the VFD and reads the front panel button matrix.
The 16311 also includes RAM so it can store the current state of all the VFD icons and
segments. Therefore, the 16311 need only be accessed when the VFD status changes and
when the button status is read. The MT1379 can control this chip directly using PIO pins or
can allow the front panel PIC to control the VFD,
10 CONNECTORS
10.1 Scart Connectors
Cable between VCR and TV (Scart)
TV
Audio Right Out
Audio Right In
Audio Left Out
Audio Left In
Audio Ground
Red
Red Ground
Green
Green Ground
Blue
Blue Ground
Status / 16:9
Reserved
Reserved
Fast Blanking Ground
Fast Blanking
Video Out Ground
Video In Ground
Video Out
Video In
Ground
Some cheaper SCART cables use unshielded wires, which is just about acceptable for
short cable lengths. For longer lengths, shielded co-ax cable become essential,
VCR
1
2
Audio Right In
2
1
Audio Right Out
3
6
Audio Left In
6
3
Audio Left Out
4
4
Audio Ground
15
15
Red
13
13
Red Ground
11
11
Green
9
9
Green Ground
7
7
Blue
5
5
Blue Ground
8
8
Status / 16:9
10
10
Reserved
12
12
Reserved
14
14
Fast Blanking Ground
16
16
Fast Blanking
17
18
Video In Ground
18
17
Video Out Ground
19
20
Video In
20
19
Video Out
21
21
Ground
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