參數(shù)資料
型號: HD66732
廠商: Hitachi,Ltd.
英文描述: Graphics Liquid Crystal Display Controller/Driver Supporting JIS Level-1 and Level-2 Kanji ROM(圖形LCD控制器/驅(qū)動器)
中文描述: 圖形液晶顯示控制器/驅(qū)動器支持日標級- 1和第2級漢字光盤(圖形液晶顯示控制器/驅(qū)動器)
文件頁數(shù): 53/133頁
文件大?。?/td> 2608K
代理商: HD66732
HD66732
53
Half-size ROM (HCGROM) Select (RB)
RL4–1:
Switch the memory bank of the half-size HCGROM for the specified display line. Bank 0 and
bank 2 of the HCGROM each incorporate 128 fonts, and display 256 fonts in total. The RL1–RL4 bits
select HCGROM bank 0/1 for the display-line unit. When RL1 = "0", the first line selects bank 0. When
RL1 = "1", the first line selects bank 1. The RL2, RL3, and RL4 bits select the second- to fourth-line
memory banks, respectively.
R/W RS DB7
DB0
DB6 DB5 DB4 DB3 DB2 DB1
0
1
0
RL3 RL2 RL1
RL4
0
0
0
RB:
Figure 19 HCGROM Select Instruction
Half-size ROM (HCGROM) Display Attribute (RC)
A11/10:
Designate the display attributes of all half-size HCGROM fonts displayed in the first line.
A21/20:
Designate the display attributes of all half-size HCGROM fonts displayed in the second line.
A31/30:
Designate the display attributes of all half-size HCGROM fonts displayed in the third line.
A41/40:
Designate the display attributes of all half-size HCGROM fonts displayed in the fourth line.
For details, see the Display Attribute Designation section. The full-size fonts are specified with the two-bit
attribute codes in each character code.
R/W RS DB7
DB0
DB6 DB5 DB4 DB3 DB2 DB1
0
1
A20 A11 A10
A21
A30
A31
A40
A41
RC:
Figure 20 HCGROM Display Attribute Instruction
Table 34 Attributes and Half-size Display State
A41
A40
A31
A30
A21
A20
A11
A10
Half-size Display State
0
0
0
0
0
0
0
0
Normal display
0
1
0
1
0
1
0
1
Black-white reversed display
1
0
1
0
1
0
1
0
Blinking display
1
1
1
1
1
1
1
1
Black-white reversed blinking display
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