This is revision A of the EPROM GAL Plug20 and it is currently a work in progress.

EMDP1 GAL Plug20 Plug (Rev. A)

Table of Contents
Introduction
Schematic
Printed Circuit Board
Tables
Issues

Introduction

The EMDP1 GAL Plug20 plug is used to program the 16V8 and 18V10.

Schematic

The schematic for this revision is shown below:

Printed Circuit Board

The following printed circuit board files exist:

plug20_artwork.png: The artwork layer picture (PNG).
plug20_back.png: The back layer picture (PNG).
plug20_front.png: The front layer picture (PNG).
plug20.gal: The artwork Gerber (RS274X) file.
plug20.gbl: The back (solder side) Gerber (RS274X) file
plug20.gtl: The front (component side) Gerber (RS274X) file.
plug20.gml: The mask (both sides) Gerber RS274X) file.
plug20.drl: The drill (Excellon) file.
plug20.tol: The tool file that lists hole counts.

Tables

The table below shows were each of the BD signals winds up:

Pin EMDP1 Name Connected To 16V8 18V10 Chip Pin
1 SCL U1-SCL
2 GND Ground GND GND 10
3 SDA U1-SDA
4
5
6 +5V Vcc
7
8 BD0 PROG_LED
9 BD1 ZIF40 Pin 39 P/V- P/V- 19
10 BD2 ZIF40 Pin 27
11 BD3 ZIF40 Pin 29
12 BD4 ZIF40 Pin 30
13 BD5 ZIF40 Pin 14
14 BD6 ZIF40 Pin 31 STB- VIL 11
15 BD7 ZIF40 Pin 13
16 BD8 ZIF40 Pin 32 STDOUT VIL 12
17 BD9 ZIF40 Pin 11
18 BD10 Plug Pin 4
19 BD11 ZIF40 Pin 9 SDIN STDOUT 9
20 BD12 Plug Pin 6 RA5 SDIN 7
21 BD13 ZIF40 Pin 8 SCLK STB- 8
22 BD14 ZIF40 Pin 6 RA4 SCLK 6
23 BD15 ZIF40 Pin 5 RA3 RA5 5
24 BD16 ZIF40 Pin 36 VIL RA2 16
25 BD17 ZIF40 Pin 4 RA2 RA4 4
26 BD18 ZIF40 Pin 38 RA0 RA0 18
27 BD19 ZIF40 Pin 37 VIL RA1 17
28 BD20 ZIF40 Pin 3 RA1 RA3 3
29 BD21 Plug Pin 13 (ID0) Ground
30 BD22 Plug Pin 14 (ID1) Ground
31 BD23 Plug Pin 15 (ID2) Ground
32 BD24 Plug Pin 16 (ID3) Ground
33 BD25 Ground
34 BD26 Ground
35 BD27
36 VAR1 Plug Pin 12 (V1) VCC VCC 20
37 VAR2 ZIF40 Pin 2 EDIT EDIT 2
38
39
40

Pin	EMDP1 Name	Connected To	16V8	18V10	Chip Pin
1	SCL	U1-SCL
2	GND	Ground	GND	GND	10
3	SDA	U1-SDA
4
5
6	+5V	Vcc
7
8	BD0	PROG_LED
9	BD1	ZIF40 Pin 39	P/V-	P/V-	19
10	BD2	ZIF40 Pin 27
11	BD3	ZIF40 Pin 29
12	BD4	ZIF40 Pin 30
13	BD5	ZIF40 Pin 14
14	BD6	ZIF40 Pin 31	STB-	VIL	11
15	BD7	ZIF40 Pin 13
16	BD8	ZIF40 Pin 32	STDOUT	VIL	12
17	BD9	ZIF40 Pin 11
18	BD10	Plug Pin 4
19	BD11	ZIF40 Pin 9	SDIN	STDOUT	9
20	BD12	Plug Pin 6	RA5	SDIN	7
21	BD13	ZIF40 Pin 8	SCLK	STB-	8
22	BD14	ZIF40 Pin 6	RA4	SCLK	6
23	BD15	ZIF40 Pin 5	RA3	RA5	5
24	BD16	ZIF40 Pin 36	VIL	RA2	16
25	BD17	ZIF40 Pin 4	RA2	RA4	4
26	BD18	ZIF40 Pin 38	RA0	RA0	18
27	BD19	ZIF40 Pin 37	VIL	RA1	17
28	BD20	ZIF40 Pin 3	RA1	RA3	3
29	BD21	Plug Pin 13 (ID0)	Ground
30	BD22	Plug Pin 14 (ID1)	Ground
31	BD23	Plug Pin 15 (ID2)	Ground
32	BD24	Plug Pin 16 (ID3)	Ground
33	BD25	Ground
34	BD26	Ground
35	BD27
36	VAR1	Plug Pin 12 (V1)	VCC	VCC	20
37	VAR2	ZIF40 Pin 2	EDIT	EDIT	2
38
39
40

The table below shows were each of the pins goes:

Pin 16V8 18V10 BDx

1 VIL VIL PD0

2 EDIT EDIT VAR2

3 RA1 RA3 BD20

4 RA2 RA4 BD17

5 RA3 RA5 BD15

6 RA4 SCLK BD14

7 RA5 SDIN BD12

8 SCLK SDTB- BD13

9 SDIN STDOUT BD11

10 GND GND GND

11 STB- VIL BD6

12 STDOUT VIL BD8

13 VIL VIL PD4

14 VIL VIL PD2

15 VIL VIL PD3

16 VIL RA2 BD16

17 VIL RA1 BD19

18 RA0 RA0 BD18

19 P/V- P/V- BD1

20 VCC VCC VAR1

Pin	16V8	18V10	BDx
1	VIL	VIL	PD0
2	EDIT	EDIT	VAR2
3	RA1	RA3	BD20
4	RA2	RA4	BD17
5	RA3	RA5	BD15
6	RA4	SCLK	BD14
7	RA5	SDIN	BD12
8	SCLK	SDTB-	BD13
9	SDIN	STDOUT	BD11
10	GND	GND	GND
11	STB-	VIL	BD6
12	STDOUT	VIL	BD8
13	VIL	VIL	PD4
14	VIL	VIL	PD2
15	VIL	VIL	PD3
16	VIL	RA2	BD16
17	VIL	RA1	BD19
18	RA0	RA0	BD18
19	P/V-	P/V-	BD1
20	VCC	VCC	VAR1

Issues