CONTROLS HARDWARE RELEASE NO. 54.1
CAMAC 185 Module
Digital Input - 32 BITS
Robert J. Ducar
April 14, 1986
2 CAMAC 185 OP CODES
8 PALS DOCUMENTATION
The one-wide CAMAC 185 module provides basic digital monitor facilities. The module furnishes 32 bits of monitor organized as two 16 bits words. The module also provides two pulsed outputs. The printed circuit board for this module provides a variety of input and output conventions that are easily modified by the end user. The monitor lines are TTL compatible and normally active high with 1000 ohms to ground terminated inputs. Active low inputs and pulled-up inputs are available options to the user. The pulsed outputs are normally one second in duration. Electrically separate pulsed outputs are available at the module front panel in addition to the rear I/O connector. These lines are are available as either active high or active low outputs. When configured in the active high output option, the output drivers are 74F3037 gates. When configured in the active low output option, the pulsed lines are sourced from a 75446 peripheral driver. These drivers are well suited to relay control, each being capable of sinking up to 400 ma loads. In this configuration, each output is diode clamped to +24 volts for transient suppression and is also pulled-up to +24 volts with a 100K ohm resistor. The diode clamps and pull-up resistors may be connected to +5 volts rather than to +24 volts by means of a soldered wire option. Upon clear command or powering-up, the pulsed outputs are set to the off state.
2 CAMAC 185 OP CODES
All codes return module Q and X immediately, except as noted. This module never asserts LAM.
F(0) A(0) Read Monitor Word 0 --------- R16 (MSB) - (LSB) R1 --------------------------------- M0-15 - Monitor Word 0 - M0-0
F(0) A(1) Read Monitor Word 1 --------- R16 (MSB) - (LSB) R1 --------------------------------- M1-15 - Monitor Word 1 - M1-0
F(6) A(0) Read Module Number --------- R16 - R9 | R8 - R1 ----------------------------- | 0 | B9 Hex, 185 Dec |
F(7) A(0) Dummy Read - No Data are Returned ---------
F(9) A(0) Reset Module --------- This command is a logical or with Z*S2 and power-up clear. It sets the pulse outputs off.
F(29) A(0) Pulse Output P0 ---------- Q is conditional for this operation. If the P0 Output is active, Q will not be returned.
F(29) A(1) Pulse Output P1 ---------- Q is conditional for this operation. If the P1 Output is active, Q will not be returned.
3 CAMAC 185 MODULE - I/O ASSIGNMENTS
Rear I/O: 36 Position Edge Connector A = R B = L
POS SIGNAL POS SIGNAL --- -------------- --- ---------------- 1L Common 1R Common 2L M0-15 (MSB) 2R M1-15 (MSB) 3L M0-14 | 3R M1-14 | 4L M0-13 | 4R M1-13 | 5L M0-12 | 5R M1-12 | 6L M0-11 | 6R M1-11 | 7L M0-10 | 7R M1-10 | 8L M0-9 | 8R M1-9 | 9L M0-8 | 9R M1-8 | 10L M0-7 MW0 10R M1-7 MW1 11L M0-6 | 11R M1-6 | 12L M0-5 | 12R M1-5 | 13L M0-4 | 13R M1-4 | 14L M0-3 | 14R M1-3 | 15L M0-2 | 15R M1-2 | 16L M0-1 | 16R M1-1 | 17L M0-0 (LSB) 17R M1-0 (LSB) 18L P0 18R P1
4 CAMAC 185 MODULE - FRONT PANEL
The CAMAC 184 module has the following front panel features:
N led: Red (stretched)
P1 Output: Green led (not stretched) Lemo (74F3037 or 75446 driver)
P0 Output: Green led (not stretched) Lemo (74F3037 or 75446 driver)
A supply of CAMAC 185 operational spares is maintained on the second floor of the Linac Annex. Spares are normally provided with active high pulse outputs and active high monitor inputs terminated with 1000 ohms to ground. Pulsed outputs are normally set to one second +/- 10%.
6 INPUT/OUTPUT OPTIONS
For active low inputs - substitute 74LS541 at IC Locations #5, #6, #11, and #12. Change 1K ohm pull-downs to 4.7K ohm pull-ups.
For active low P0 and P1 front panel outputs - remove 74F3037 at IC Location #20 and install 75446 at #19. Install pull-up resistors to +5V or to +24V.
For active low P0 and P1 rear I/O outputs - remove 74F3037 at IC Location #13 and install 75446 at #7. Install pull-up resistors to +5V or to +24V.
0812-ED-218122 Schematic 0812-BD-218123 Artwork (RF-123) 0812-BD-218124 Master Drawing 0812-MD-34863 Outline Drawing 0812-MC-218102 Front Panel Mechanical 0812-MC-218125 Front Panel Silkscreen
8 PALS DOCUMENTATION
Filenames: 18502A.DAT 1st Level NAF Decoder 82S153 18508A.DAT 2nd Level NAF Decoder 82S153