82374EB Datasheet, PDF (104/208 Pages) Intel Corporation – SYSTEM COMPONENT (ESC)

82374EB 82374SB
Table 4 ESC I O Register Address Map (Continued)
Address
(Hex)
Address (Bit)
FEDC BA98 7654
3210
Type
Name
00C8H 0000 0000 1100 100x R W DMA2 CH2 Base and Current Address
00CAh 0000 0000 1100 101x R W DMA2 CH2 Base and Current Count
00CCh 0000 0000 1100 110x R W DMA2 CH3 Base and Current Address
00CEh 0000 0000 1100 111x R W DMA2 CH3 Base and Current Count
00D0h 0000 0000 1101 000x R W DMA2 Status(r) Command(w) Register
00D2h 0000 0000 1101 001x WO DMA2 Write Request
00D4h 0000 0000 1101 010x WO DMA2 Write Single Mask Bit
00D6h 0000 0000 1101 011x WO DMA2 Write Mode
00D8h 0000 0000 1101 100x WO DMA2 Clear Byte Pointer
00DAh 0000 0000 1101 101x WO DMA2 Master Clear
00DCh 0000 0000 1101 110x WO DMA2 Clear Mask
00DEh 0000 0000 1101 111x R W DMA2 Read Write All Mask Register Bits
00F0h 0000 0000 1111 0000 WO Reset IRQ13
0372h² 0000 0011 0111 0010 WO Secondary Floppy Disk Digital Output
03F2h² 0000 0011 1111 0001 WO Primary Floppy Disk Digital Output
0400h 0000 0100 0000 0000 R W Reserved
0401h 0000 0100 0000 0001 R W DMA1 CH0 Base Current Count
0402h 0000 0100 0000 0010 R W Reserved
0403h 0000 0100 0000 0011 R W DMA1 CH1 Base Current Count
0404h 0000 0100 0000 0100 R W Reserved
0405h 0000 0100 0000 0101 R W DMA1 CH2 Base Current Count
0406h 0000 0100 0000 0110 R W Reserved
0407h 0000 0100 0000 0111 R W DMA1 CH3 Base Current Count
0408h 0000 0100 0000 1000 R W Reserved
Block
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
IRQ13
FDCCS
FDCCS
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
DMA
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