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

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 Page 9