F256 - Revision history

Gadget: Cleanup and notes on boot-to-ram vs boot-to-flash effects.

2024-06-02T21:03:57Z

Cleanup and notes on boot-to-ram vs boot-to-flash effects.

Gadget: Added a divider between the course map and the more detailed I/O map.

2024-06-02T19:01:28Z

Added a divider between the course map and the more detailed I/O map.

Gadget: Created page with "F256 Jr - 816E Memory Map {| class = "wikitable" | '''Start''' || '''Stop''' || '''Description''' |- | $00_0000 || $00_DFFF || RAM 56K PURE RAM |- | $00_E000 || $00_FFFF || F..."

2024-05-27T19:13:59Z

Created page with "F256 Jr - 816E Memory Map {| class = "wikitable" | '''Start''' || '''Stop''' || '''Description''' |- | $00_0000 || $00_DFFF || RAM 56K PURE RAM |- | $00_E000 || $00_FFFF || F..."

New page

F256 Jr - 816E Memory Map
{| class = "wikitable"
| '''Start''' || '''Stop''' || '''Description'''
|-
| $00_0000 || $00_DFFF || RAM 56K PURE RAM
|-
| $00_E000 || $00_FFFF || FLASH 8K Shadow Copy of $FF_E000
|-
| $01_0000 || $07_FFFF || RAM 448K PURE RAM
|-
| $08_0000 || $EF_FFFF || A Big Nothing
|-
| $F0_0000 || $F0_7FFF || IO 32K All the I/Os
|-
| $F0_8000 || $F3_FFFF || A Big Nothing
|-
| $F4_0000 || $F7_FFFF || CARTRIDGE 256K RAM/FLASH/IO
|-
| $F8_0000 || $FF_FFFF || FLASH 512K FLASH
|-
| $F0_0000 || $F0_03FF || Gamma Table Blue
|-
| $F0_0400 || $F0_07FF || Gamma Table Green
|-
| $F0_0800 || $F0_0BFF || Gamma Table Red
|-
| $F0_0C00 || $F0_0FFF || Mouse Graphic
|-
| $F0_1000 || $F0_10FF || TinyVICKY Master Control Registers
|-
| $F0_1100 || $F0_11FF || TinyVICKY Bitmap Control Registers
|-
| $F0_1200 || $F0_12FF || TinyVICKY Tile Control Registers
|-
| $F0_1300 || $F0_13FF || Reserved
|-
| $F0_1400 || $F0_141F || SID LEFT
|-
| $F0_1480 || $F0_149F || SID MONO
|-
| $F0_1500 || $F0_151F || SID RIGHT
|-
| $F0_1580 || $F0_1580 || OPL3 Address Register Low (K Only)
|-
| $F0_1581 || $F0_1581 || OPL3 Data Register (K Only)
|-
| $F0_1582 || $F0_1582 || OPL3 Address Register Hi (K Only)
|-
| $F0_1600 || $F0_1607 || PSG LEFT
|-
| $F0_1608 || $F0_160F || PSG MONO
|-
| $F0_1610 || $F0_161F || PSG RIGHT
|-
| $F0_1620 || $F0_162F || CODEC
|-
| $F0_1630 || $F0_163F || UART
|-
| $F0_1640 || $F0_164F || PS2
|-
| $F0_1650 || $F0_165F || TIMERS
|-
| $F0_1660 || $F0_166F || INT CTRL
|-
| $F0_1670 || $F0_167F || DIP SW
|-
| $F0_1680 || $F0_168F || IEC Controller
|-
| $F0_1690 || $F0_169F || RTC
|-
| $F0_16A0 || $F0_16AF || System Control Registers
|-
| $F0_16B0 || $F0_16DF || Reserved
|-
| $F0_16E0 || $F0_16EA || Mouse Pointer Registers
|-
| $F0_16EB || $F0_16EF || PCB Version Registers
|-
| $F0_16F0 || $F0_17FF || Reserved
|-
| $F0_1800 || $F0_183F || Text Foreground Color
|-
| $F0_1840 || $F0_187F || Text Background Color
|-
| $F0_1880 || $F0_18FF || NES/SNES Joystick
|-
| $F0_1900 || $F0_1AFF || VICKY Sprite Control Registers
|-
| $F0_1B00 || $F0_1BFF || 65C22 VIA1 Control Registers (K Only)
|-
| $F0_1C00 || $F0_1CFF || 65C22 VIA0 Control Registers
|-
| $F0_1D00 || $F0_1DFF || SD Card Controller
|-
| $F0_1E00 || $F0_1E1F || Integer Math Copro
|-
| $F0_1E20 || $F0_1EFF || Reserved
|-
| $F0_1F00 || $F0_1FFF || DMA Controller
|-
| $F0_2000 || $F0_27FF || TEXT FONT Set 0
|-
| $F0_2800 || $F0_2FFF || TEXT FONT Set 1
|-
| $F0_3000 || $F0_33FF || GRAPHICS COLOR LUT 0
|-
| $F0_3400 || $F0_37FF || GRAPHICS COLOR LUT 1
|-
| $F0_3800 || $F0_3BFF || GRAPHICS COLOR LUT 2
|-
| $F0_3C00 || $F0_3FFF || GRAPHICS COLOR LUT 3
|-
| $F0_4000 || $F0_5FFF || TEXT Memory
|-
| $F0_6000 || $F0_7FFF || COLOR Memory
|-
|}

@@ Line 3: / Line 3: @@
 | '''Start''' || '''Stop''' || '''Description'''
 |-
-| $00_0000 || $00_DFFF || RAM 56K PURE RAM
+| $00_0000 || $07_FFFF || 512k RAM (but see next entry).
 |-
-| $00_E000 || $00_FFFF || FLASH 8K Shadow Copy of $FF_E000
+| $00_FF00 || $00_FFFF || $F8_FF00-$F8_FFFF when the Boot-to-Flash jumper is set.
 |-
-| $01_0000 || $07_FFFF || RAM 448K PURE RAM
+| $08_0000 || $EF_FFFF || Not used.
 |-
-| $08_0000 || $EF_FFFF || A Big Nothing
+| $F0_0000 || $F0_7FFF || I/O, see next table.
 |-
-| $F0_0000 || $F0_7FFF || IO 32K All the I/Os
+| $F0_8000 || $F3_FFFF || Not used.
 |-
-| $F0_8000 || $F3_FFFF || A Big Nothing
+| $F4_0000 || $F7_FFFF || 256k Cartridge RAM/FLASH/IO
 |-
-| $F4_0000 || $F7_FFFF || CARTRIDGE 256K RAM/FLASH/IO
+| $F8_0000 || $FF_FFFF || 512K FLASH.
 |-
 |}

@@ Line 18: / Line 18: @@
 |-
 | $F8_0000 || $FF_FFFF || FLASH 512K FLASH
 |-
 | $F0_0000 || $F0_03FF || Gamma Table Blue