Diamond Power Products MM-48-AT user manual Overview, Base + Write Function Read Function, Lsb Msb

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5. I/O MAP

5.1 Overview

Diamond-MM-48-AT occupies 16 bytes in I/O memory space. A functional list of these registers is provided below, and detailed register bit definitions are provided on the next page and the following chapter. The information in chapters 5 and 6 is provided to assist in understanding the board’s operation and for use by programmers writing their own driver software. Diamond Systems’ Universal Driver software provides high-level control of the board’s functionality and will isolate these underlying hardware details for most programmers.

Base +	Write Function	Read Function
0	D/A LSB	A/D LSB
1	D/A MSB	A/D MSB
2	A/D channel register	A/D channel register
3	Relay control register	Relay control readback
4	Digital I/O configuration	Digital I/O config + status readback
5	Digital I/O output data	Digital I/O input and edge data
6	Optocoupler configuration	Optocoupler configuration readback
7	D/A channel and update control	Optocoupler input and edge data
8	Command register	Status register
9	Configuration register	Configuration register readback
10	FIFO control register	FIFO status register
11	Interrupt control register	Interrupt status register

Addresses 12-15 form a window into 2 4-byte pages. The page is selected with a bit in register 10.

Page 0: counter/timers
12	Ctr 0 and Ctr 1 LSB	Ctr 0 and Ctr 1 MSB
13	Ctr 0 CSB (center byte) / Ctr 1 MSB	Ctr 0 CSB / Ctr 1 MSB
14	Ctr 1 MSB	Ctr 1 MSB
15	Counter/timer control register	---
Page 1: Calibration Control
12	EEPROM / TrimDAC data register	EEPROM / TrimDAC data register
13	EEPROM / TrimDAC address register	EEPROM / TrimDAC address register
14	Calibration control register	Calibration status register
15	EEPROM access key	FPGA code version

Diamond-MM-48-AT User Manual V1.01

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Contents DIAMOND-MM-48-AT Table of Contents Description DIAMOND-MM-48-AT Board Drawing Signal Name Definition O Header Pinout and PIN DescriptionJ3 Analog and Digital I/O Signal Name Definition Relay output contacts J4 Relays and OptocouplersOptoisolated input contacts Base Address Board ConfigurationBase Address Jumper Position Hex Decimal Interrupt Level SelectionOptocoupler Polarity ReservedAnalog Input Range Overview Base + Write Function Read FunctionLSB MSB Write operations Register Map Bit AssignmentsDA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 Read operationsBase + Write Register DefinitionsDefinitions Base + ReadAD9 AD8 Base + Read/Write A/D Channel RegisterHIGH3 HIGH2 HIGH1 HIGH0 LOW3 LOW2 LOW1 LOW0 Base + Read/Write Relay Control Port Base + Read/Write Digital I/O Configuration RegisterRELAY7 RELAY6 RELAY5 RELAY4 RELAY3 RELAY2 RELAY1 RELAY0 DIR3 DIR2 DIR1 DIR0Base + Read Digital I/O Data and Edge Status DIO3 DIO2 DIO1 DIO0DEDGE3 DEDGE2 DEDGE1 DEDGE0 DIO3 DIO2 DIO1 DIO0 OEN3 OEN2 OEN1 OEN0 POL3 POL2 POL1 POL0Base + Write Channel and Control Register Daupdt DACH2 DACH1 DACH0OEDGE3 OEDGE2 OEDGE1 OEDGE0 OPTO3 OPTO2 OPTO1 OPTO0 Dapre Daprld Reset Fiforst Adstart Base + Write Command RegisterPOL ADCH3 ADCH2 ADCH1 ADCH0 Base + Read Status RegisterCKSEL1 CKFRQ1 CKFRQ0 Scnint Clken Clksel Base + Write Configuration RegisterAdbusy Dabusy CKSEL1 CKFRQ1 CKFRQ0 Scnint Clken Clksel Base + Read Configuration & Status RegisterFifoth Fifoen Scanen Base + Write Fifo Control RegisterBase + Read Fifo Status Register OVF Fifoth Fifoen ScanenClrt Clrd Clro Clra Tinte Dinte Ointe Ainte Base + Write Interrupt Control RegisterTint Dint Oint Aint Tinte Dinte Ointe Ainte Base + Read Interrupt Status RegisterBase + Read/Write Counter/Timer D7 Base + Read/Write Counter/Timer D15Base + Read/Write Counter/Timer D23 Base + Write Counter/Timer Control Register Ctrno Latch Gtdis Gten Ctdis Cten Load CLRCtrno Base + Read/Write Eeprom / TrimDAC Address Register Base + Read/Write Eeprom / TrimDAC Data RegisterBase + Write Calibration Control Register Base + Write Eeprom Access Key RegisterBase + Read Calibration Status Register Base + Read Fpga Revision CodeResolution Analog Input Ranges and ResolutionInput Ranges Single Ended and Differential InputsPerforming AN A/D Conversion LSB = readbase MSB = readbase+1 Data = MSB * 256 + LSB Trigger an A/D conversion on the current channelInput voltage = A/D value / 32768 * Full-scale voltage Trigger D SCAN, FIFO, and Interrupt OperationClken Clksel Conversion or ScanInterrupt Operation Fifo OperationFifoen Fifoth Scanen Fifoen =Guidelines for Selecting Fifo Use Fifoen and Fifoth Operation TableAinte Fifoen Scanen Analog Output Overview Generating AN Analog Output Reference Voltages Autocalibration Operation12.2 A/D calibration 12.3 D/A CalibrationDigital I/O Operation Optocoupler Operation Procedure for enabling interrupts on selected edgesPolarity and logic readback Edge detection assumes OENn = 1 to enable edge detectionRelay Operation COUNTER/TIMER Operation Counter 0 A/D Sample ControlCounter 1 Counting/Totalizing Functions Counter Command SequencesCounter Outpbase+15,0x01 Outpbase+15,0x81 Specifications AutocalibrationGeneral