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Diffstat (limited to 'src/lib/netlist/devices/nld_7493.cpp')
-rw-r--r--src/lib/netlist/devices/nld_7493.cpp60
1 files changed, 0 insertions, 60 deletions
diff --git a/src/lib/netlist/devices/nld_7493.cpp b/src/lib/netlist/devices/nld_7493.cpp
index 7ad8aedc13f..2fce9523c0b 100644
--- a/src/lib/netlist/devices/nld_7493.cpp
+++ b/src/lib/netlist/devices/nld_7493.cpp
@@ -57,66 +57,6 @@
#include "nld_7493.h"
#include "netlist/nl_base.h"
-//- Identifier: TTL_7493_DIP
-//- Title: 7493 Binary Counters
-//- Description:
-//- Each of these monolithic counters contains four master-slave
-//- flip-flops and additional gating to provide a divide-by-two
-//- counter and a three-stage binary counter for which the
-//- count cycle length is divide-by-five for the 90A and divide-by-eight
-//- for the 93A.
-//-
-//- All of these counters have a gated zero reset and the 90A
-//- also has gated set-to-nine inputs for use in BCD nine’s complement
-//- applications.
-//-
-//- To use their maximum count length (decade or four-bit binary),
-//- the B input is connected to the Q A output. The input count pulses
-//- are applied to input A and the outputs are as described in the
-//- appropriate truth table. A symmetrical divide-by-ten count can be
-//- obtained from the 90A counters by connecting the Q D output to the
-//- A input and applying the input count to the B input which gives
-//- a divide-by-ten square wave at output Q A.
-//-
-//- Pinalias: B,R01,R02,NC,VCC,NC,NC,QC,QB,GND,QD,QA,NC,A
-//- Package: DIP
-//- NamingConvention: Naming conventions follow National Semiconductor datasheet
-//- Limitations: Internal resistor network currently fixed to 5k
-//- more limitations
-//- Example: ne555_astable.c,ne555_example
-//- FunctionTable:
-//- 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 ||||
-//-
-//-
namespace netlist
{