hd66789 Renesas Electronics Corporation., hd66789 Datasheet - Page 45
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hd66789
Manufacturer Part Number
hd66789
Description
528-channel, One-chip Driver For Amorphous Tft Panels With 262,144-color Display Ram, Power Supply Circuit, And Gate Circuit
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66789.pdf
(156 pages)
- Current page: 45 of 156
- Download datasheet (2Mb)
HD66789
DM1–0:Specify the display operation mode. The interface through which display operation is executed is
selected with DM1-0 bits. This setting enables switching between internal clock operation and external
display interface. Switching within the external display interface modes (between RGB-I/F and VSYNC-
I/F) cannot be made.
DM Bits
DM1
0
0
1
1
RM: Specify the interface for RAM accesses. RAM is accessible only through the interface specified with
RM bit. When the display data is written through RGB-I/F, set RM = 1. The RM-bit setting can be made
irrespective of the display operation mode. This means the display data can be updated through a system
interface even during the display period through RGB interface by setting RM = 0.
RM Bit
RM
0
1
Rev.0.12, May 09 2003, page 45 of 156
DM0
0
1
0
1
Interface for RAM Access
System interface/VSYNC interface
RGB interface
Display Interface
Internal clock operation
RGB interface
VSYNC interface
Setting disabled
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