Table 4-1 Row Select Addresses - Epson S1D13700 User's & Technical Manual

4: FUNCTION DESCRIPTION
Note: Up to 64 characters can be used in one bank when used in combination with CG ROM.
When using only CG RAM, up to 256 characters can be used in one bank. Also note that
the relationship between CG patterns and character codes changes when banks are
switched over.
(3) Method of determining the CG address
The addition shown below is performed to generate CG RAM addresses. Therefore, note that CG RAM
data is not mapped from addresses set in the SAG register to the VRAM space, but are mapped based on
the SAG + character code + row select address.
1When number of lines that comprise the character font is equal to or less than 8 (M2 = 0, M1 = 0)
SAG
Character code
+ row select address
CG RAM address
2When number of lines that comprise the character font is from 9 to 16, including both ends (M2 = 1, M1
= 0)
SAG
Character code
+ row select address
CG RAM address
Note: Only the addressing above is supported.
Note: 1. Line count l ... when character font consists of 8 lines or less
Line count 2 ... when character font consists of 9 lines or more
3When M1 = 1
For the character codes defined in CG RAM2, the S1D13700 automatically changes the D6 bit in the
character code from 1 to 0. This ensures that the data storage area in CG RAM corresponds to
48
A15 A14 A13 A12
0 0 0 0
0 0 0 0
VA15 VA14 VA13 VA12 VA11 VA10 VA9 VA8 VA7 VA6 VA5 VA4 VA3 VA2 VA1 VA0
A15 A14 A13 A12
0 0 0 0
0 0 0 0
VA15 VA14 VA13 VA12 VA11 VA10 VA9 VA8 VA7 VA6 VA5 VA4 VA3 VA2 VA1 VA0

Table 4-1 Row Select Addresses

R3
ROW0 0
ROW1 0
ROW2 0
ROW7 0
ROW8 1
ROW14 1
ROW15 1
A11 A10 A9 A8 A7
0 D7 D6 D5 D4
0 0 0 0 0
A11 A10 A9 A8 A7
D7 D6 D5 D4 D3
0 0 0 0 0
R2 R1 R0
0 0 0
0 0 1
0 1 0
Line count 1
1 1 1 1
0 0 0
1 1 0
1 1 1
EPSON
A6 A5 A4 A3 A2
D3 D2 D1 D0 0
0 0 0 0 R2
A6 A5 A4 A3 A2
D2 D1 D0 0 0
0 0 0 R3 R2
Line
count 2
S1D13700 Technical Manual
A1 A0
0 0
R1 R0
A1 A0
0 0
R1 R0