hd66712u Renesas Electronics Corporation., hd66712u Datasheet - Page 32

• Manufacturer Part Number: hd66712u
• Description: Dot-matrix Liquid Crystal Display Controller/driver - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

Modifying Character Patterns
Character pattern development procedure
The following operations correspond to the numbers listed in Figure 12:
a. Determine the correspondence between character codes and character patterns.
b. Create a listing indicating the correspondence between EPROM addresses and data.
c. Program the character patterns into an EPROM.
d. Send the EPROM to Hitachi.
e. Computer processing of the EPROM is performed at Hitachi to create a character pattern listing,
f. If there are no problems within the character pattern listing, a trial LSI is created at Hitachi and
which is sent to the user.
samples are sent to the user for evaluation. When it is confirmed by the user that the character
patterns are correctly written, mass production of the LSI will proceed at Hitachi.
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