m66271fp Renesas Electronics Corporation., m66271fp Datasheet - Page 19

• Manufacturer Part Number: m66271fp
• Description: Operation Panel Controller
• Manufacturer: Renesas Electronics Corporation.

M66271FP
(2-6)
Address
01010
SAL
01100
SAH
Address
01110
Address
10000
REJ03F0267-0200 Rev.2.00 Mar 18, 2008
Page 19 of 27
(2-7) M cycle variable register [R8]
(2-8) Data port register [R9]
Display start address register [R6, R7]
R/W
R/W
R/W
W
R/W
R/W
•
•
•
•
•
•
•
•
•
•
•
•
•
D7
D7
D7
0
0
0
1
D6 and D7 output "0" when read SAH.
It is possible to set display start address to the extent of 257F
Don't set over 2580
When reset, SAL and SAH = "0000
Display start address is established by the writing data to SAH register. Even if only change SAL,
surely set SAH after SAL.
When select 8-bit MPU, start address set in SAL <D7 to D0> + SAH <D5 to D0>.
When select 16-bit MPU, start address set in SAL <D7 to D1>+ SAH <D5 to D0>.
Even it selecting 16-bit MPU, enable to set display start address in character unit.
In case the display reading data from VRAM start at D <15:12>, set SAL <D0> = "0", and if start at D
<7:4>, set SAL <D0> = "1". (Refer to figure 8)
Set the cycle of M. In case of MT = 01
LP).
When reset, MT = "00
We recommend this register set suitable value for user's LCD.
Exclusive data port register for the LCD module built-in system.
Reading or writing 8-bit data between MPU and VRAM through this register.
VRAM address index register (IDXL, IDXH) is increased of +1, when finished access to DP.
Output indefinite data when reset.
D6
D6
D6
0
0
0
1
D5
0
0
0
1
D5
0
0
0
1
D5
D4
0
0
0
0
D4
SAH
0
0
0
1
D4
MT
H
↓
D3
DP
.
0
0
0
0
D3
H
0
0
0
1
", toggle M signal at every 1 frame.
D3
↓
D2
0
0
0
1
D2
0
0
0
1
D2
D1
0
0
0
0
D1
0
0
1
1
H
D1
"
D0
0
0
0
1
H
, M repeat reversal (toggle) at every 1 line (at every 1 count of
D0
0
1
0
1
D0
D7
Function
0
0
0
0
Function
Function
Toggle change at every 1 frame.
Toggle change at every 1 line (1LP).
Toggle change at every 2 lines.
Toggle change at every 255 lines.
D6
0
0
0
1
Data Port (8-bit)
D5
0
0
0
1
Cycle of M
D4
0
0
0
1
SAL
H
↓
(= 9600 address).
↓
D3
0
0
0
1
D2
0
0
0
1
D1
0
0
1
1
D0
0
1
0
1
Display Start
0000
0001
0002
↓
257F
Address
H
H
H
H
XX
(indefinite)
0000
00
Reset
H
Reset
Reset
H
H