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System Specifications 117
003Eh - 003Fh
0040h - 0043h Programmable Timers
0044h - 004Fh
0050h - 0053h Programmable Timers
0054h - 005Fh
0060h, 0064h Keyboard Controller
0061h NMI Status and Control Register
0063h NMI Status and Control Register
0065h NMI Status and Control Register
0067h NMI Status and Control Register
0070h NMI Mask (bit 7) and RTC Address (bits 6::0)
0072h NMI Mask (bit 7) and RTC Address (bits 6::0)
0074h NMI Mask (bit 7) and RTC Address (bits 6::0)
0076h NMI Mask (bit 7) and RTC Address (bits 6::0)
0071h RTC Data
0073h RTC Data
0075h RTC Data
0077h RTC Data
0080h - 008Fh DMA Low Page Register
0090h - 0091h DMA Low Page Register
0092h System Control Port A (PC-AT control Port)
0093h - 009Fh DMA Low Page Register
0094h Video Display Controller
00A0h - 00A1h Interrupt Controller 2
00A4h - 00A15 Interrupt Controller 2
00A8h - 00A19 Interrupt Controller 2
00Ach - 00Adh Interrupt Controller 2
00B0h - 00B1h Interrupt Controller 2
00B2h Advanced Power Management Control
00B3h Advanced Power Management Status
00B4h - 00B5h Interrupt Controller 2
00B8h - 00B9h Interrupt Controller 2
00BCh - 00BDh Interrupt Controller 2
00C0h - 00DFh DMA Controller 2
00F0h Clear NPX error
00F8h - 00FFh x87 Numeric Coprocessor
Address Resource
8506162.book Page 117 Wednesday, May 10, 2000 10:21 AM