82C836 Datasheet, PDF (110/205 Pages) List of Unclassifed Manufacturers – Single-Chip 386sx AT

s I/O Address Maps
Address Maps
Table 9-6. Miscellaneous I/O Registers
I/O Address
0061H
0070H
0071H
0092H
Read/Write
R/W
W
R/W
R/W
Description
Control/Status Port
Real Time Clock Index and NMI Mask
Real Time Clock Data Port
System Control Port
Table 9-7. DMA Page Registers
I/O Address
0081H
0082H
0083H
0087H
0089H
008AH
008BH
008FH
Read/Write
W
W
W
W
W
W
W
W
Description
DMA Channel 2 Page Register
DMA Channel 3 Page Register
DMA Channel 1 Page Register
DMA Channel 0 Page Register
DMA Channel 6 Page Register
DMA Channel 7 Page Register
DMA Channel 5 Page Register
Refresh Address Page Register
Table 9-8. Interrupt Controller II
I/O Address
00A0H
00A1H
Read/Write
W
W
W
R
R
R
W
W
W
W
R
Description
INTC ICW1
INTC OCW2
INTC OCW3
INTC Interrupt Request Register (IIR)
INTC In-Service Register (ISR)
INTC Polling Data Byte
INTC ICW2
INTC ICW3
INTC ICW4
INTC OCW1
INTC Interrupt Mask Register (IMR)
9-4 Revision 3.0
PRELIMINARY
Chips and Technologies, Inc.