PIN # DESIGNATION FUNCTION DEFINITION ----- ----------- ------------------ ---------- 01-07 D6-D0 Data bus lines 6 to 0 I/O 08 M1H Mouse 1 horizontal I 09 M0H Mouse 0 horizontal I 10-17 RGA8-RGA1 Register address bus 8-1 I 18 BURST* Color burst O 19 VCC +5 Volt I 20-23 R0-R3 Video red bits 0-3 O 24-27 B0-B3 Video blue bits 0-3 O 28-31 G0-G3 Video green bits 0-3 O 32 /CSYNC Composite sync I 33 ZD* Background indicator O 34 N/C Not connected N/C (old Denise) CDAC CDAC clock I (ECS Denise) 35 7M 7.15909 MHZ I 36 CCK Color clock I 37 VSS Ground I 38 M0V Mouse 0 vertical I 39 M1V Mouse 1 vertical I 40-48 D15-D7 Data bus lines 15 to 7 I/O