SH7764 Datasheet, PDF (1258/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 G2D
the color set in this register if the source transparent color polarity bit (STP) in the rendering
control register (RCLR) is 0, and when the source data does not match the color set in this register
if the STP bit in RCLR is 1. STCR retains its value at a reset.
Bit
24
23 to 16
15 to 0
Bit Name
STC1
STC8
STC16
Description
Transparent color for 1-bit/pixel source
Transparent color for 8-bit/pixel source
Transparent color for 16-bit/pixel source
For 16-bit/pixel source data, use the same format specified by the SPF bit in the rendering control
register (RCLR). When SPF = 1 (ARGB = 1555), the A value is not compared.
Bits 31 to 25—Reserved: The write value should always be 0. These bits are always read as 0.
(2) Destination Transparent Color Register (DTCR)
Offset:
H'084
Initial Value: Undefined
The destination transparent color register (DTCR) is a 32-bit readable/writable register which
compares the destination data with the color set in this register when the rendering attribute
DTRANS bit is set to 1. The destination color becomes transparent and drawing not performed
when the destination data matches the color set in this register if the destination transparent color
polarity bit (DTP) in the rendering control register (RCLR) is 0, and when the destination data
does not match the color set in this register if the DTP bit in RCLR is 1. DTCR retains its value at
a reset.
Bit
23 to 16
15 to 0
Bit Name
DTC8
DTC16
Description
Transparent color for 8-bit/pixel destination
Transparent color for 16-bit/pixel destination
For 16-bit/pixel destination data, use the same format specified by the DPF bit in the rendering
control register (RCLR). When DPF = 1 (ARGB = 1555), the A value is not compared.
Bits 31 to 24—Reserved: The write value should always be 0. These bits are always read as 0.
Rev. 1.00 Nov. 22, 2007 Page 1202 of 1692
REJ09B0360-0100