Lenovo PC 300PL Technical Information Manual for IBM PC300GL (Type 6563, 6564, - Page 57
DMA I/O address map, Table 34., Address hex, Description, Byte pointer
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DMA I/O address map Table 34. DMA I/O address map Address (hex) Description 0000 Channel 0, Memory Address register 0001 Channel 0, Transfer Count register 0002 Channel 1, Memory Address register 0003 Channel 1, Transfer Count register 0004 Channel 2, Memory Address register 0005 Channel 2, Transfer Count register 0006 Channel 3, Memory Address register 0007 Channel 3, Transfer Count register 0008 Channels 0-3, Read Status/Write Command register 0009 Channels 0-3, Write Request register 000A Channels 0-3, Write Single Mask register bits 000B Channels, 0-3, Mode register (write) 000C Channels 0-3, Clear byte pointer (write) 000D Channels, 0-3, Master clear (writer)/temp (read) 000E Channels 0-3, Clear Mask register (write) 000F Channels 0-3, Write All Mask register bits 0081 Channel 2, Page Table Address register 0082 Channel 3, Page Table Address register 0083 Channel 1, Page Table Address register 0087 Channel 0, Page Table Address register 0089 Channel 6, Page Table Address register 008A Channel 7, Page Table Address register 008B Channel 5, Page Table Address register 008F Channel 4, Page Table Address/Refresh register 00C0 Channel 4, Memory Address register 00C2 Channel 4, Transfer Count register 00C4 Channel 5, Memory Address register 00C6 Channel 5, Transfer Count register 00C8 Channel 6, Memory Address register 00CA Channel 6, Transfer Count register 00CC Channel 7, Memory Address register Bits 00-15 00-15 00-15 00-15 00-15 00-15 00-15 00-15 00-07 00-02 00-02 00-07 N/A 00-07 00-03 00-03 00-07 00-07 00-07 00-07 00-07 00-07 00-07 00-07 00-15 00-15 00-15 00-15 00-15 00-15 00-15 50 PC 300 GL and 300 PL Byte pointer Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
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