SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 306

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

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Core Logic Module
I/O Port 081h
Address bits [23:16] (byte 2).
I/O Port 082h
Address bits [23:16] (byte 2).
I/O Port 083h
Address bits [23:16] (byte 2).
I/O Port 087h
Address bits [23:16] (byte 2).
I/O Port 089h
Address bits [23:16] (byte 2).
I/O Port 08Ah
Address bits [23:16] (byte 2).
I/O Port 08Bh
Address bits [23:16] (byte 2).
I/O Port 08Fh
Refresh address.
I/O Port 481h
Address bits [31:24] (byte 3).
Note:
I/O Port 482h
Address bits [31:24] (byte 3).
Note:
I/O Port 483h
Address bits [31:24] (byte 3).
Note:
I/O Port 487h
Address bits [31:24] (byte 3).
Note:
I/O Port 489h
Address bits [31:24] (byte 3).
Note:
I/O Port 48Ah
Address bits [31:24] (byte 3).
Note:
I/O Port 48Bh
Address bits [31:24] (byte 3).
Note:
Bit
This register is reset to 00h on any access to Port 081h.
This register is reset to 00h on any access to Port 082h.
This register is reset to 00h on any access to Port 083h.
This register is reset to 00h on any access to Port 087h.
This register is reset to 00h on any access to Port 089h.
This register is reset to 00h on any access to Port 08Ah.
This register is reset to 00h on any access to Port 08Bh.
Description
(Continued)
DMA Channel 7 High Page Register (R/W)
DMA Channel 5 High Page Register (R/W)
DMA Channel 2 High Page Register (R/W)
DMA Channel 3 High Page Register (R/W)
DMA Channel 1 High Page Register (R/W)
DMA Channel 0 High Page Register (R/W)
DMA Channel 6 High Page Register (R/W)
DMA Channel 2 Low Page Register (R/W)
DMA Channel 3 Low Page Register (R/W)
DMA Channel 1 Low Page Register (R/W)
DMA Channel 0 Low Page Register (R/W)
DMA Channel 6 Low Page Register (R/W)
DMA Channel 7 Low Page Register (R/W)
DMA Channel 5 Low Page Register (R/W)
ISA Refresh Low Page Register (R/W)
Table 5-44. DMA Page Registers
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Revision 3.0