Quatech DS-3000 Operation & User’s Manual

3, Quatech DS-3000 LIST OF FIGURES Figure 1. DS-2000 board layout . . . . . . . . . 2 Figure 2. 16550 internal registers . . . . . . . 3 Figure 3. Interrupt enable register . . . . . . 4 Figure 4. Interrupt identification register . . 5 Figure 5. Interrup…

6, FUNCTIONAL DESCRIPTION III. 16550 FUNCTIONAL DESCRIPTION The 16550 is an upgrade of the standard 16450 Asynchronous Communications Element (ACE). Designed to be compatible with the 16450, the 16550 enters the character mode on reset and in…

8, FUNCTIONAL DESCRIPTION B. INTERRUPT IDENTIFICATION REGISTER +------+ D7 | FFE |----- FIFO enable (FIFO only) +------+ D6 | 0 | +------+ D5 | 0 | …

13, FUNCTIONAL DESCRIPTION E. MODEM CONTROL REGISTER +------+ D7 | 0 | +------+ D6 | 0 | +------+ D5 | 0 | +------+ D4 …

11, FUNCTIONAL DESCRIPTION RRST - Receive FIFO Reset: When set (logic 1), all bytes in the receiver FIFO are cleared and the counter is reset. The shift register is not cleared. RRST is self- clearing. FE - FIFO Enabl…

4, I. INTRODUCTION The DS-2000 is a dual channel asynchronous serial communication adapter which utilizes balanced differential drivers and receivers to provide RS-422-A communications. It is capable of reliable communications over long distances (4000 feet) within noisy…