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Memory Maps for Toshiba Computers
Source: Maintenance Manual
T100X Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0CFFF 64 VGA BIOS ROM
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Hard-RAM window
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T200/T200CS Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T1800/T1850/T1850C Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Reserved
0E000-0E7FF 32 Hard-RAM window
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T1900/T1900C Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Backup RAM
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Hard-RAM window
0E800-0EFFF 32 Reserved
0F000-0FFFF 64 System BIOS ROM
T1900S Memory Map
00000-09FFF 640 System memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 BIOS ROM
T1910/T1910CS Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T1950/T1950CS/T1950CT Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T2200SX Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Reserved
0E000-0E7FF 32 Hard-RAM
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T2400CS/T2400CT Memory Map
00000-09FFF 640 System memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 Reserved
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Backup RAM and
Video BIOS
0E800-0EFFF 32 Reserved
0F000-0FFFF 64 BIOS ROM
T3100SX Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Reserved
0E000-0E7FF 32 Hard-RAM
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T3200SX/T3200SXC Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0EFFF 32 Reserved
0F000-0FFFF 64 System BIOS ROM
T3300SL Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0CFFF 64 Hard-RAM
0D000-0EFFF 64 Reserved
0F000-0FFFF 64 System BIOS ROM
T3400/T3400CT Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T3600CT Memory Map
00000-09FFF 640 System memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS
0C800-0CFFF 32 Reserved
0D000-0DFFF 64 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 BIOS ROM
T4400SX/T4400SXC/T4400C Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Reserved
0E000-0E7FF 32 Hard-RAM
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T4500/4500C Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Backup RAM
0E000-0E7FF 32 Hard-RAM
0E800-0EFFF 32 reserved
0F000-0FFFF 64 System BIOS ROM
T4600/T4600C Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Hard-RAM
0E000-0E7FF 32 reserved
0E800-0EFFF 32 reserved
0F000-0FFFF 64 System BIOS ROM
T4700CT Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T4800CT Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0DFFF 96 Reserved
0E000-0E7FF 32 Reserved
0E800-0EFFF 32 Backup RAM
0F000-0FFFF 64 System BIOS ROM
T6400 Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0EFFF 160 Reserved
0F000-0FFFF 64 System BIOS ROM
T6600C Memory Map
00000-09FFF 640 System working memory
0A000-0BFFF 128 Video RAM
0C000-0C7FF 32 VGA BIOS ROM
0C800-0EFFF 32 SCSI BIOS ROM
64 shadow
64 shadow
0F000-0FFFF 32 System BIOS ROM