T A B L E O F C O N T E N T S
WARRANTY INFORMATION . . . . . . . . . . . . i
LIST OF FIGURES . . . . . . . . . . . . . iii
I. INTRODUCTION . . . . . . . . . . . . . . . . 1
II. BOARD DESCRIPTION . . . . . . . . . . . . . 1
III. 16450/16550
* FUNCTIONAL DESCRIPTION . . . . 1
A. INTERRUPT ENABLE REGISTER . . . . . . . . 4
B. INTERRUPT IDENTIFICATION REGISTER . . . . 5
C. FIFO CONTROL REGISTER
* . . . . . . . . . . 7
D. LINE CONTROL REGISTER . . . . . . . . . . 8
E. MODEM CONTROL REGISTER . . . . . . . . . 10
F. LINE STATUS REGISTER . . . . . . . . . . 11
G. MODEM STATUS REGISTER . . . . . . . . . . 13
H. SCRATCHPAD REGISTER . . . . . . . . . . . 14
IV. FIFO INTERRUPT MODE OPERATION
* . . . . . . . 14
V. BAUD RATE SELECTION . . . . . . . . . . . . 14
VI. ADDRESSING . . . . . . . . . . . . . . . . . 16
VII. INTERRUPTS . . . . . . . . . . . . . . . . . 18
INTERRUPT STATUS REGISTER . . . . . . . . 19
VIII. OUTPUT CONFIGURATIONS . . . . . . . . . . . 20
IX. EXTERNAL CONNECTIONS . . . . . . . . . . . . 21
X. INSTALLATION . . . . . . . . . . . . . . . . 22
XI. SPECIFICATIONS . . . . . . . . . . . . . . . 22
* For optional 16550 only.
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