S1D13700F02 Epson Electronics America, Inc., S1D13700F02 Datasheet - Page 96

• Manufacturer Part Number: S1D13700F02
• Description: Embedded Memory Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 96
13.2 Setting the Character Generator Address
S1D13700F02
X42D-A-001-01
+ROW Select Address
+ROW Select Address
CGRAM Address
CGRAM Address
Character Code
Character Code
SAG
SAG
Table 13-2 Character Fonts Where Number of Lines ≤ 16 (REG[00h] bit 2 = 1)
Table 13-1 Character Fonts Where Number of Lines ≤ 8 (REG[00h] bit 2 = 0)
VA15 VA14 VA13 VA12 VA11 VA10 VA9
VA15 VA14 VA13 VA12 VA11 VA10 VA9
The CGRAM addresses in the display memory address space are not mapped directly from
the address in the Character Generator RAM Start Address registers, REG[19h] -
REG[1Ah]. The data to be displayed is at a CGRAM address calculated from (REG[19h] -
REG[1Ah]) + character code + ROW select address. For the ROW select address, see
Figure 13-1 “Row Select Address,” on page 97.
The following tables show the address mapping for CGRAM addresses.
A15 A14 A13 A12 A11 A10
A15 A14 A13 A12 A11 A10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D7
0
0
0
Revision 1.01
D7
D6
0
0
A9
D6
A9
D5
0
0
VA8
VA8
A8
D5
A8
D4
0
0
VA7
VA7
A7
D4
A7
D3
0
0
VA6
VA6
A6
D3
A6
D2
0
0
VA5
VA5
A5
D2
A5
D1
0
0
Epson Research and Development
Hardware Functional Specification
VA4
VA4
A4
D1
A4
D0
0
0
VA3
VA3
A3
D0
A3
R3
Vancouver Design Center
0
0
Issue Date: 2005/11/29
VA2
VA2
A2
R2
A2
R2
0
0
VA1
VA1
A1
A1
R1
R1
0
0
VA0
VA0
A0
R0
A0
R0
0
0