參數(shù)資料
型號: SED1335F
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Controller ICs
中文描述: LCD控制器芯片
文件頁數(shù): 98/148頁
文件大小: 388K
代理商: SED1335F
S-MOS Systems, Inc. 2460 North First Street San Jose, CA 95131 Tel: (408) 922-0200 Fax: (408) 922-0238
98
268-0.4
6.0 Character Generator
6.2
6.2 CG Memory Allocation
Since the SED1335F/1336F uses 8-bit character
codes, it can handle no more than 256 characters at
a time. However, if a wider range of characters is
required, character generator memory can be bank-
switched using the CGRAM ADR command.
Note that there can be no more than 64 characters per bank.
Figure 64. Internal and external character mapping
Built–in CG ROM
(160 characters,
5
×
7 pixels max.)
CG RAM
CG RAM 1
CG RAM 2
CG RAM n
Built-in CG ROM
(160 characters,
5
×
7 pixels max.)
CG ROM
CG RAM 1
CG RAM 2
CG RAM n
SAG
CG RAM
ADR
CG ROM
CG RAM
(64 characters max, 8
×
16 pixels max)
(64 characters max, 8
×
16 pixels max)
M0 = 1
M0 = 1
Basic CG space
(256 characters,
8
×
16 pixels max.)
256 characters max.
M1 = 0
256 characters max.
M1 = 0
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