SH7205 Datasheet, PDF (1386/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 26 2D Graphics Engine (2DG)
26.3.8 Source A&B Read-In-Area Setting Register for Blitter (GR_SABSET)
The register GR_SABSET sets the SA and SB areas. In a DMA transfer, the total number of pixels
to be transferred from the external memory space is obtained by SSWIDH × SSHIGH.
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
-
-
-
-
-
-
-
SSHIGH
Initial value: -
-
-
-
-
-
-
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit: 15 14
-
-
Initial value: -
-
R/W: R
R
13 12
-
-
-
-
R
R
11 10
-
-
-
-
R
R
9
8
7
6
5
4
3
2
1
0
-
SSWIDH
-
0
0
0
0
0
0
0
0
0
R R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit
Bit name
31 to 25 
24 to 16 SSHIGH
15 to 9 
8 to 0 SSWIDH
Initial
Value
R/W
Undefined R
H'000
R/W
Undefined R
H'000
R/W
Description
Reserved
The read value is undefined. The write value should
always be 0.
SA/SB Area Vertical Setting
These bits set the vertical height (number of lines) of
the rectangular area (SA or SB area) to be
transferred.
Valid range: 1 to 288 lines
Reserved
The read value is undefined. The write value should
always be 0.
SA/SB Area Horizontal Setting
These bits set the horizontal width (number of pixels)
of the rectangular area (SA or SB area) to be
transferred.
Valid range: 1 to 511 pixels
Rev. 1.00 Mar. 25, 2008 Page 1354 of 1868
REJ09B0372-0100