EM83040B View Datasheet(PDF) - ELAN Microelectronics
Part Name
Description
MFG CO.
'EM83040B' PDF : 22 Pages View PDF
FUNCTION DESCRIPTIONS
Preliminary
EM83040B
LCD CONTROLLER
(1)User can use MAIN pin to chose master unit or slave unit.
MAIN
1
0
Unit
MASTER
SLAVE
Function
Generate these signals:
Load, CA, CB, VSS2+, VSS2-, VSS3, VSS4, VOUT
Internal RC clock
Accept these Master unit signals
Load, VOUT, V1, V2, V3, V4, V5
No internal RC clock
(2)User can use M1,M2 to choose four modes. As followed
MASTER MAIN M1 M0 Segment
Mode1
1
0
0
O(16:1)=S(16:1)
Mode2
1
0
1
Mode3
1
1
0
O(32:1)=S(32:1)
Mode4
1
1
1
O(48:1)=S(48:1)
SLAVE
MAIN M1 M0
Segment
Mode1
0
0
0
O(80:1)=S(80:1)
Mode2
0
0
1
O(80:1)=S(80:1)
Mode3
0
1
0
O(80:1)=S(80:1)
Mode4
0
1
1
O(80:1)=S(80:1)
* S=Segment, C=Common
* (M1, M0) for Master must same as Slave unit
(3)RAM control
Write mode
Common
O(80:17)=C(64:1)
O(80:1)=C(80:1)
O(80:33)=C(48:1)
O(80:49)=C(32:1)
Common
BIAS
1/9
1/9
1/7
1/5
BIAS
1/9
1/9
1/7
1/5
FIG. 3
LCD RAM can be written or read with control signal. The RAMEN pin can select a RAM which can be read or
write. The RAMADS pin can select whether
* This specification are subject to be changed without notice.
9.14.2001 6
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