6847 Video generator  Pinout

  Gnd 1 U








    6847    
VDG
40 D7 <--
<-- D6 2 39 CSS <--
<-- D0 3 38 !HS -->
<-- D1 4 37 !FS -->
<-- D2 5 36 !RP <--
<-- D3 6 35 !A/G <--
<-- D4 7 34 !A/S <--
<-- D5 8 33 CLK <--
<-- CHB 9 32 INV <--
<-- CLKB 10 31 !INT/EXT  
<-- CLKA 11 30 GM0 <--
--> !MS 12 29 GM1 <--
<-- A5 13 28 Y -->
<-- A6 14 27 GM2 <--
<-- A7 15 26 A4 -->
<-- A8 16 25 A3 -->
<-- 5V 17 24 A2 -->
<-- A9 18 23 A1 -->
<-- A10 19 22 A0 -->
<-- A11 20 21 A12 -->

Timing
30 Frames / second
525 Lines / frame (interleaved)
15750 Lines / second (interleaved)
63.492 Ás / line
   
  Clock rate (35/44 * 4.5 MHz)
   
   
Colour Palette

Long cycle applies to CG1, RG1, RG2, RG3 modes. !A/G is high (i.e. Graphic), 8 pixels per access.

Notes

Long cycle applies to CG1, RG1, RG2, RG3 modes. !A/G is high (i.e. Graphic), 8 pixels per access.
Short cycle applies to CG2, CG3, CG6, RG6 modes. !A/G is high (i.e. Graphic), 4 pixels per access.