SH7764 Datasheet, PDF (1237/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 G2D
(10) VBKEM
(a) Function
Performs synchronization with the frame change timing.
(b) Command Format
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
OP CODE = 0001_0000
Reserve (all 0)
Draw Mode
1. Code
B'00010000
2. Rendering Attributes
Draw Mode
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed
to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0 to 0
(c) Description
When this command is executed, the drawing operation is kept waiting until the timing for a frame
change. As soon as the frame change timing has elapsed, control passes to the next command. The
frame change timing is the next VSYNC in non-interlace mode display or interlace sync & video
mode display, and the starting point of the next frame in interlace sync mode display.
Note: This command can only be used in manual display charge mode or auto-rendering mode.
Rev. 1.00 Nov. 22, 2007 Page 1181 of 1692
REJ09B0360-0100