sed1374 ETC-unknow, sed1374 Datasheet - Page 91
![no-image](/images/no-image-200.jpg)
sed1374
Manufacturer Part Number
sed1374
Description
Sed1374 Embedded Memory Color Lcd Controller
Manufacturer
ETC-unknow
Datasheet
1.SED1374.pdf
(420 pages)
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Epson Research and Development
Vancouver Design Center
12.3 Comparison Between Default and Alternate SwivelView Modes
12.4 SwivelView Mode Limitations
Hardware Functional Specification
Issue Date: 99/04/29
Memory Requirements
Clock Requirements
Power Consumption
Panning
Performance
Item
The only limitation to using SwivelView mode on the SED1375 is that split screen
operation is not supported.
Table 12-1: Default and Alternate SwivelView Mode Comparison
The width of the rotated image must be
a power of 2. In most cases, a virtual
image is required where the right-hand
side of the virtual image is unused and
memory is wasted. For example, a
160x240x8bpp image would normally
require only 38,400 bytes - possible
within the 40K byte address space, but
the virtual image is 256x240x8bpp
which needs 61,440 bytes - not
possible.
CLK need only be as fast as the
required PCLK.
Lowest power consumption.
Vertical panning in 2 line increments.
Nominal performance.
Default SwivelView Mode
Does not require a virtual image.
MCLK, and hence CLK, need to be 2x
PCLK. For example, if the panel requires a
3MHz PCLK, then CLK must be 6MHz.
Note that 25MHz is the maximum CLK, so
PCLK cannot be higher than 12.5MHz in
this mode.
Higher than Default Mode.
Vertical panning in 1 line increments.
Higher performance than Default Mode.
Alternate SwivelView Mode
X26A-A-001-02
SED1374
Page 83
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