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- AGX 98032
-
- The Appian Renegade series uses a Cirrus Logic VGA chip (CL-GD5402/5420) for
- VGA modes and the AGX98032 for enhanced modes. The VGA can be disabled.
-
- The older Appian Rendition series uses the TM 340 series (TIGA).
-
- The AGX 98032 uses the I/O addresses 2B0h-2BFh and a 16K memory mapped area,
- located at B000h, B400h, C000h, C400h, C800h, CC00h, D000h, D400h, D800h,
- DC00h, E000h, E400h, E800h or EC00h
-
- 2B0h D(R/W): Host Ctl
- bit 0
- 3-4
- 11 To reset the AGX, set this bit, wait ~200ms then clear it
- 18
- 20
- 24-31
-
- 2B4h (R/W):
- 2B5h (R/W): ISA Host Ctl
- bit 5
-
-
- - 2B8-2BB: DAC regs 0-3 ? 2B4 has RS2/3
- 2BAh
- 2BBh
-
- 2BEh (R/W):
- Selects the indexed register read or written at 2BFh
-
- 2BEh index 1Dh (R/W):
-
- M+000h W(R/W):
- bit 9-10
- 13
-
- M+032h (R/W):
- bit 1 Clock chip Clock line
- 2 Clock chip Data line
-
- M+114h W(R/W):
- M+116h W(R/W):
- M+168h W(R/W):
- M+16Ah W(R/W):
- M+524h W(R/W):
- M+712h (R/W):
- bit 0-1
- 2-3