Offset: $1CA Access: write Chipset: ECS/AGA
Sets the programmable vertical sync stop.
Bitfields¶
Bits 10-0: Vertical line number.
Bits 15-11: Ignored.
With BEAMCON0 VARBEAMEN and VARVSYEN set, Copperline uses the VSSTRT/VSSTOP window for display presentation and vertical-sync trace state. The window must satisfy VSSTRT < VSSTOP <= VTOTAL. These latches do not set field length; VTOTAL does that.