General Description; Overview; Table 1.1: Available Items - Caen V1495 Technical Information Manual

Document type: Title:
User's Manual (MUT) Mod. V1495 General Purpose VME Board

1. General description

1.1. Overview

The Mod. V1495 is a VME 6U board, 1U wide, suitable for various digital
Gate/Trigger/Translate/Buffer/Test applications, which can be directly customised by the
User, and whose management is handled by two FPGA's:
FPGA "Bridge", which is used for the VME interface and for the connection between the
VME interface and the 2nd FPGA (FPGA "User") through a proprietary local bus. FPGA
"Bridge" manages also the programming via VME of the FPGA "User".
FPGA "User", which manages the front panel I/O channels. FPGA "User" is provided with
a basic firmware which allows to perform coincidence matrix, I/O register and
asynchronous timers functions.
FPGA "User" can be also free reprogrammed by the user with own custom logic function
(see § 5.1). It is connected as slave to the FPGA "Bridge" via CAEN Local Bus, whose
protocol shall be used in order to communicate with the FPGA "Bridge" and thus with the
VME bus.
The I/O channel digital interface is composed by four sections (A, B, C, G) placed on the
motherboard (see § 1.2). The channel interface can be expanded in the D, E, F sections
by using up to 3 mezzanine boards (see § 2.6 and § 2.7), which can be added, choosing
between the five types developed in order to cover the I/O functions and the ECL, PECL,
LVDS, NIM, TTL signals and 16bit DAC (see § 1.2). The maximum number of channels
can be expanded up to 194.
The FPGA "User" can be programmed "on the fly" directly via VME, without external
hardware tools, without disconnecting the board from the set up, without resetting it or
turning the crate off, allowing quick debug operations by the developer with his own
firmware. A flash memory on the board can store the different programming file, which
can be loaded to the FPGA "User" at any moment.
Four independent digital programmable asynchronous timers are available for
Gate/Trigger applications. It is possible to chain them for generating complex
Gate/Trigger pulse.
Code
WV1495XAAAAA
WA395XAAAAAA
WA395XBAAAAA
WA395XCAAAAA
WA395XDAAAAA
WA395XEAAAAA
WPERS0149501
WA967XAAAAAA
WFW1495SCXAA
NPO:
00117/04:V1495.MUTx/08

Table 1.1: Available items

Description
V1495 - General Purpose VME Board
A395A - 32 LVDS/ECL/PECL input channels
A395B - 32 LVDS output channels
A395C - 32 ECL output channels
A395D - 8 NIM/TTL input/output channels
A395E - 8 channel 16Bit ±5V DAC
V1495 - Customization - 3 A395C Mounting Option
A967 - 32 Channel Cable Adapter (1x32 to 2x16)
FW1495SC - 128 Channels Latching Scaler for V1495
Filename:
V1495_REV8.DOC
Revision date: Revision:
12/02/2010 8
Number of pages:
42
Page:
6