1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_7493.h
*
* DM7493: Binary Counters
*
* +--------------+
* B |1 ++ 14| A
* R01 |2 13| NC
* R02 |3 12| QA
* NC |4 7493 11| QD
* VCC |5 10| GND
* NC |6 9| QB
* NC |7 8| QC
* +--------------+
*
* Counter Sequence
*
* +-------++----+----+----+----+
* | COUNT || QD | QC | QB | QA |
* +=======++====+====+====+====+
* | 0 || 0 | 0 | 0 | 0 |
* | 1 || 0 | 0 | 0 | 1 |
* | 2 || 0 | 0 | 1 | 0 |
* | 3 || 0 | 0 | 1 | 1 |
* | 4 || 0 | 1 | 0 | 0 |
* | 5 || 0 | 1 | 0 | 1 |
* | 6 || 0 | 1 | 1 | 0 |
* | 7 || 0 | 1 | 1 | 1 |
* | 8 || 1 | 0 | 0 | 0 |
* | 9 || 1 | 0 | 0 | 1 |
* | 10 || 1 | 0 | 1 | 0 |
* | 11 || 1 | 0 | 1 | 1 |
* | 12 || 1 | 1 | 0 | 0 |
* | 13 || 1 | 1 | 0 | 1 |
* | 14 || 1 | 1 | 1 | 0 |
* | 15 || 1 | 1 | 1 | 1 |
* +-------++----+----+----+----+
*
* Note C Output QA is connected to input B
*
* Reset Count Function table
*
* +-----+-----++----+----+----+----+
* | R01 | R02 || QD | QC | QB | QA |
* +=====+=====++====+====+====+====+
* | 1 | 1 || 0 | 0 | 0 | 0 |
* | 0 | X || COUNT |
* | X | 0 || COUNT |
* +-----+-----++----+----+----+----+
*
* Naming conventions follow National Semiconductor datasheet
*
*/
#ifndef NLD_7493_H_
#define NLD_7493_H_
#include "netlist/nl_setup.h"
#define TTL_7493(name, cCLKA, cCLKB, cR1, cR2) \
NET_REGISTER_DEV(TTL_7493, name) \
NET_CONNECT(name, GND, GND) \
NET_CONNECT(name, VCC, VCC) \
NET_CONNECT(name, CLKA, cCLKA) \
NET_CONNECT(name, CLKB, cCLKB) \
NET_CONNECT(name, R1, cR1) \
NET_CONNECT(name, R2, cR2)
#define TTL_7493_DIP(name) \
NET_REGISTER_DEV(TTL_7493_DIP, name)
#endif /* NLD_7493_H_ */
|