SH7764 Datasheet, PDF (1151/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 G2D
(20) Link Specification Enable (LINKE)
The link specification enable specification can be used with the LINEC, LINED, RLINEC,
RLINED, FTRAPC, RFTRAPC, and WPR commands. From the memory address specified by the
LINK Address, the vertex coordinates are read with the LINEC, LINED, RLINEC, RLINED,
FTRAPC, and RFTRAPC commands, and the register write data is read with the WPR command.
The longword address following the LINK Address is handled as the next command code.
Therefore, do not specify the longword address following the address where the LINK Address is
to be assigned as the link destination address specified by the LINK Address.
(21) Link Address Relative Specification (LREL)
The link address relative specification can be used with the LINEC, LINED, RLINEC, RLINED,
FTRAPC, RFTRAPC, and WPR commands. The LREL bit is used together with the link
specification enable bit (LINKE). The LREL bit should be cleared to 0 when LINKE = 0. The link
destination address is specified as a relative address. The command code address is the origin of
the relative address.
The longword address following the LINK Address is handled as the next command code.
Therefore, do not specify the longword address following the address where the LINK Address is
to be assigned as the link destination address specified by the LINK Address.
(22) Clockwise (CLKW)
The clockwise specification can be used with the LINED and RLINED commands. The CLKW bit
is used to specify whether the order in giving the n vertices is clockwise or counterclockwise. The
order is clockwise when CLKW = 1 and counterclockwise when CLKW = 0.
(23) Raster Operation (ROP)
The raster operation specification can be used with the BITBLT type commands. The ROP code is
specified in the ROP field, which is a BITBLT command parameter.
Rev. 1.00 Nov. 22, 2007 Page 1095 of 1692
REJ09B0360-0100