Renesas SH7781 - Manual (Page 989)

19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 959 of 1658
REJ09B0261-0100
19.5.2 CSYNC
When in master mode, a CSYNC (composite sync) signal is output. EQWR is used to set the low-
level pulse width of the CSYNC equal pulse. SPWR is used to set the low-level pulse width of the
CSYNC separation pulse.
The CSYNC waveform is selected using the CSY bit in DSMR.
HSW
HSYNC
VSYNC
CSYNC
(CSY = 00)
EQW
(CSY = 10)
(CSY = 11)
HC
SPW
1/2HC
When HC is odd, it is rounded to an even value.
Equivalent pulse:
2.5 rasters Separation pulse:
2.5 rasters Equivalent pulse:
2.5 rasters
Equivalent pulse:
3 rasters Separation pulse:
3 rasters Equivalent pulse:
3 rasters
Figure 19.14 CSYNC Timing Chart (Non-Interlaced Mode, First Half of Interlace Frame)