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Table 3. DMA I/O address map (continued)
Address (hex) Description Bits Byte pointer
008A Channel 7, page table address register 00 – 07
008B Channel 5, page table address register 00 – 07
008F Channel 4, page table address/refresh register 00 – 07
00C0 Channel 4, memory address register 00 – 15 Yes
00C2 Channel 4, transfer count register 00 – 15 Yes
00C4 Channel 5, memory address register 00 – 15 Yes
00C6 Channel 5, transfer count register 00 – 15 Yes
00C8 Channel 6, memory address register 00 – 15 Yes
00CA Channel 6, transfer count register 00 – 15 Yes
00CC Channel 7, memory address register 00 – 15 Yes
00CE Channel 7, transfer count register 00 – 15 Yes
00D0 Channels 4–7, read status/write command register 00 – 07
00D2 Channels 4–7, write request register 00 – 02
00D4 Channels 4–7, write single mask register bit 00 – 02
00D6 Channels 4–7, mode register (write) 00 – 07
00D8 Channels 4–7, clear byte pointer (write) N/A
00DA Channels 4–7, master clear (write)/temp (read) 00 – 07
00DC Channels 4–7, clear mask register (write) 00 – 03
00DE Channels 4–7, write all mask register bits 00 – 03
00DF Channels 5–7, 8- or 16-bit mode select 00 – 07
66 User Guide