EM65571 ELAN Microelectronics Corp, EM65571 Datasheet - Page 79

• Manufacturer Part Number: EM65571
• Description: 130com / 128seg 65k Color Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

CAUTION: REF and SWAP should both be set to “1”
Product Specification (V1.0) 08.04.2005
(This specification is subject to change without further notice)
Internal Data
Write Data
16-bit access (HSW=1)
When data is written to the display RAM, the written data is in normal bit order.
When data is read from the display RAM, the bit order of the read data is exchanged.
8.2.6 Increment Control Register Set
(During a reset: {WIN, AIM, AYI, AXI} = 0H, read address: AH)
This register controls the increment mode and window function when accessing the display
RAM. The increment operation of AX and AY registers can be controlled by AIM, AYI and
AXI registers setting and every write access or every read access to the display RAM. The
AY register directly connects to the display RAM as Y address. The AX register connects to
the address converter, and outputs to the display RAM as X address in the auto-increment
mode, the AX and AY register are then incremented, but not directly increment the X and Y
addresses.
In setting the control register, the address increment operation can be made without setting
successive addresses for writing data to the display RAM or reading data from the MPU.
The WIN register is used for window function control.
WIN=”0”: Normal RAM access
WIN=”1”: Window function access
In the case of accessing the window function, the following register should be set before
accessing the RAM.
WIN=”1”, AXI=”1”, AYI=”1”
X-address, Y-address, Window X End Address, Window Y End Address
Moreover, the following address condition should be kept:
Window end X address
Window end Y address
Refer to “6-7 Display RAM access using Window Function” for details on window function.
D7
1
D0 D1 D2 D3 D4 D5 D6
D0 D1 D2 D3 D4 D5 D6
d0 d1 d2 d3 d4 d5 d6
D6
0
REV
In accordance to the of display RAM data, the lighting or not-lighting of the display
REV =”0”: When RAM data is at “H”, the LCD voltage is ON (normal)
REV =”1”: When RAM data is at “L”, the LCD voltage is ON (reversed)
D5
1
D4
0
D7
D7
d7
is set up.
SWAP=0
D8 D9 D10 D11
D8 D9 D10 D11
d8 d9 d10 d11
WIN AIM
D3
Window start Y address
Window start X address
D2
D12D13D14D15
d12d13d14d15
AYI
D1
AXI
D0
130COM/128SEG 65K Color STN LCD Driver
D0 D1 D2 D3 D4 D5 D6
d15
d14
CSB RS RDB WRB RE2 RE1 RE0
d13
0
d12
d11
1
d10
SWAP=1
d9
D7
1
d8
D8 D9 D10 D11
d7
0
d6
d5
d4
0
D12D13D14D15
d3
EM65571
d2
0
d1
x 73
0
d0