Owner's manual

Table Of Contents
7-38 DS785UM1
Copyright 2007 Cirrus Logic
Raster Engine With Analog/LCD Integrated Timing and Interface
EP93xx User’s Guide
7
7
7
Vertical Frame Timing Registers
VLinesTotal
Address: 0x8003_0000
Default: 0x0000_0000
Definition: Total horizontal lines that compose a vertical frame
Bit Descriptions:
RSVD: Reserved - Unknown during read
TOTAL: VLines Total - Read/Write
The VLines Total value written to this field specifies the
total number of horizontal lines for a video frame including
synchronization, blanking, and active lines. This value is
used to preset the Vertical down counter. Please refer to
video the signalling timing diagrams shown in Figure 7-9
and Figure 7-10.
VSyncStrtStop
Address: 0x8003_0004
Default: 0x0000_0000
Definition: Vertical Sync Pulse Start/Stop register
Bit Descriptions:
RSVD: Reserved - Unknown during read
STOP: Stop - Read/Write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RSVD
1514131211109876543210
RSVD TOTAL
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RSVD STOP
1514131211109876543210
RSVD STRT