CRTC pins RA3 and RA4 are not connected on CPC.
== CUDISP == CUDISP defines the hardware cursor. CRTC pin CUDISP is not connected to the Gate Array, but so it has no effect on a barebone CPC or Plus machine. But this signal is present on the expansion port (, and is used by the [[PlayCity]] and [[Play2CPC]] expansions).
== DISPTMG ==