sed1374 ETC-unknow, sed1374 Datasheet - Page 188

• Manufacturer Part Number: sed1374
• Description: Sed1374 Embedded Memory Color Lcd Controller
• Manufacturer: ETC-unknow

Page 10
Miscellaneous Options
SED1374
X26A-B-001-01
Miscellaneous options are several items which do not fit into any other category.
• HW Video Invert Enable - the SED1374 supports inverted color output. The color
• HW Power Save Enable - the SED1374 supports two power save modes. One is initi-
• High Performance - improves chip throughput at the expense of power consumption.
inversion can be toggled by software or in response to a signal applied to pin FPDAT11.
In order for the hardware color inversion to succeed this option must be selected.
- The color inversion is performed on the output from the LUT.
- HW Video Invert is not availlable for TFT operation.
ated by software, the second in response to input on the GPIO0 pin. In order for the
hardware power save mode to function this option must be selected.
When not selected the internal MCLK signal is divided down version of the internal
PCLK signal. Table 1 depicts the ratios when high performance is not selected. The
slower MCLKs result in lower power use.
When this option is selected MCLK == PCLCK at all pixel depths. Running MCLK at
higher frequencies results in greater power use.
Figure 3: Miscellaneous Options
Color Depth (bpp)
Table 1: MCLK to PCLK ratios
1
2
4
8
MCLK = PCLK / 8
MCLK = PCLK / 4
MCLK = PCLK / 2
MCLK = PCLK
Ratio
1374CFG.EXE Configuration Program
Epson Research and Development
Vancouver Design Center
Issue Date: 98/10/27