F84045 Asiliant Technologies, F84045 Datasheet - Page 30
F84045
Manufacturer Part Number
F84045
Description
Manufacturer
Asiliant Technologies
Datasheet
1.F84045.pdf
(173 pages)
Specifications of F84045
Lead Free Status / Rohs Status
Not Compliant
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3.1. I/O Ports and Configuration Registers
Table 3.1: 84041 and 84045 I/O Port Summary
Ports
00-0F
20-21
22-23
26-27
40-43
60
61
64
70
71
80-8F
92
A0-A1
C0-DF
F0-F1
170-177
1F0-1F7
376-377
3F6-3F7
570-577
5F0-5F7
776-777
7F6-7F7
Revision 1.0
4041
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2/10/95
4045
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Description
DMA controller #1 (8 bit DMA).
Interrupt Controller #1 (IRQ0-7).
Configuration register Address and Data Port.
SMM Configuration register Address and Data Port.
Timer Chip (8254).
Keyboard Data & Mouse port.
"Port B"
Keyboard Command/Status port.
Real Time Clock Address Port & NMI mask. (4041: bit 7, write only)
Real Time Clock Data Port.
DMA Page Registers
Fast CPU reset & GATEA20.
Interrupt Controller #2 (IRQ8-15).
DMA Controller #2 (16 bit DMA).
NPU Error Reset.
IDE (Secondary)
IDE (Primary)
IDE (Secondary)
IDE (Primary)
IDE (Fourth)
IDE (Third)
IDE (Fourth)
IDE (Third)
Subject to change without notice
3. Registers
29
Preliminary
Registers
CS4041
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