VIC-II 6567/6569/856x (Video Interface Chip 2) reference

VIC-II register set:
    7 6 5 4 3 2 1 0
$D000 (R/W)M0X Sprite 0 X-position
$D001 (R/W)M0Y Sprite 0 Y-position
$D002 (R/W)M1X Sprite 1 X-position
$D003 (R/W)M1Y Sprite 1 Y-position
$D004 (R/W)M2X Sprite 2 X-position
$D005 (R/W)M2Y Sprite 2 Y-position
$D006 (R/W)M3X Sprite 3 X-position
$D007 (R/W)M3Y Sprite 3 Y-position
$D008 (R/W)M4X Sprite 4 X-position
$D009 (R/W)M4Y Sprite 4 Y-position
$D00A (R/W)M5X Sprite 5 X-position
$D00B (R/W)M5Y Sprite 5 Y-position
$D00C (R/W)M6X Sprite 6 X-position
$D00D (R/W)M6Y Sprite 6 Y-position
$D00E (R/W)M7X Sprite 7 X-position
$D00F (R/W)M7Y Sprite 7 Y-position
$D010 (R/W)M?X8 M7X8 M6X8 M5X8 M4X8 M3X8 M2X8 M1X8 M0X8
$D011 (R/W)CR1 RST8 ECM BMM DEN RSEL YSCROLL
$D012 (R)RASTER Raster Counter bits 7-0
$D012 (W)RSTCMP Raster Comparator bits 7-0
$D013 (R)LPX Light Pen X-position
$D014 (R)LPY Light Pen Y-position
$D015 (R/W)M?E M7E M6E M5E M4E M3E M2E M1E M0E
$D016 (R/W)CR2 unused ¹ RES MCM CSEL XSCROLL
$D017 (R/W)M?YE M7YE M6YE M5YE M4YE M3YE M2YE M1YE M0YE
$D018 (R/W)VM/CB Screen Pointer (A13-A10) Bitmap/Charset Pointer (A13-A11) unused ¹
$D019 (R/W)IRQST IRQ unused ¹ ILP IMMC IMBC IRST
$D01A (R/W)IRQEN unused ¹ ELP EMMC EMBC ERST
$D01B (R/W)M?DP M7DP M6DP M5DP M4DP M3DP M2DP M1DP M0DP
$D01C (R/W)M?MC M7MC M6MC M5MC M4MC M3MC M2MC M1MC M0MC
$D01D (R/W)M?XE M7XE M6XE M5XE M4XE M3XE M2XE M1XE M0XE
$D01E (R/W)M?M M7M M6M M5M M4M M3M M2M M1M M0M
$D01F (R/W)M?D M7D M6D M5D M4D M3D M2D M1D M0D
$D020 (R/W)EC unused ¹ Border Color
$D021 (R/W)B0C unused ¹ Background Color 0
$D022 (R/W)B1C unused ¹ Background Color 1
$D023 (R/W)B2C unused ¹ Background Color 2
$D024 (R/W)B3C unused ¹ Background Color 3
$D025 (R/W)MM0 unused ¹ Sprite Multicolor 0
$D026 (R/W)MM1 unused ¹ Sprite Multicolor 1
$D027 (R/W)M0C unused ¹ Sprite 0 Color
$D028 (R/W)M1C unused ¹ Sprite 1 Color
$D029 (R/W)M2C unused ¹ Sprite 2 Color
$D02A (R/W)M3C unused ¹ Sprite 3 Color
$D02B (R/W)M4C unused ¹ Sprite 4 Color
$D02C (R/W)M5C unused ¹ Sprite 5 Color
$D02D (R/W)M6C unused ¹ Sprite 6 Color
$D02E (R/W)M7C unused ¹ Sprite 7 Color
$D02F (R/W)KCR ² unused ¹ Keyboard Interface ²
$D030 (R/W)FAST ² unused ¹ TEST ² 2 MHz ²

¹ - Unused bits read back 1
² - Only available on C128

VIC-II video modes:
ECM BMM MCM Mode
000 Hires character mode (40x25)
001 Multicolor character mode (40x25)
010 Hires bitmap mode (320x200)
011 Multicolor bitmap mode (160x200)
100 Hires character mode with extended background colors (40x25)
1xx Illegal mode (black)


VIC-II color palette:
0 1 2 3 4 5 6 7
VIC-II color palette
8 9 A B C D E F


Detailed documentation about the VIC-II can be found in the VIC-article by Christian Bauer.


© 2009-2017 Graham

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