Renesas SH7781 - Manual (Page 988)

19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 958 of 1658
REJ09B0261-0100
Table 19.14 Correspondence Table of Settings of Display Timing Generation Registers
Synchronization Method
Register Name Bit Name Master Mode TV Sync Mode
Horizontal display start position
register (HDSR) HDS hsw + xs - 19 hsw + xs – 24 * 2
Horizontal display end position
register (HDER) HDE hsw + xs – 19 + xw hsw + xs – 24 + xw * 2
Vertical display start position register
(VDSR) VDS ys – 2 * 3 ys – 2 * 3
Vertical display end position register
(VDER) VDE ys – 2 + yw ys – 2 + yw
Horizontal synchronous pulse width
register (HSWR) HSW hsw - 1 hsw - 1
Horizontal scan period register
(HCR) HC hc - 1 hc - 1
Vertical synchronous position
register (VSPR) VSP vc – vsw - 1 vc – vsw - 1
Vertical scan period register (VCR) VC vc - 1 vc - 1
Notes: The numerical values in the above table are decimal numbers.
1. In all scan modes, VDS, VDE, VSP, VC settings are in single-field units.
2. The values of HDS and HDE are from the fourth rising edge of DCLKOUT after
detection of the falling edge of
HSYNC through the rising edge of DCLKOUT.
DCLKIN(input)
DR5－DR0(output)
DG5－DG0(output)
DB5－DB0(output)
hsw + xs
D0 D1 D2
HSYNC( input)
DCLKOUT(output)
3. VDS should be set to 1 or greater.
4. HC should be set so as to satisfy HC > HDE.