EM65570 ELAN Microelectronics Corp, EM65570 Datasheet - Page 64

• Manufacturer Part Number: EM65570
• Description: 68com / 98seg 65k Color Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

EM65570
68COM/ 98SEG 65K Color STN LCD Driver
NOTE: Address for the control register are enclosed in brackets [ ].
58 x
Scroll top address
(Lower nibble)
Scroll top address
(Upper nibble)
Scroll bottom
address
(Lower nibble)
Scroll bottom
address
(Upper nibble)
Scroll specified
address
(Lower nibble)
Scroll specified
address
(Upper nibble)
Scroll start address
(Lower nibble)
Scroll start address
(Upper nibble)
Scroll mode select [8H]
Register Access
Control
Control Register
*
Don’t Care
8.2
[FH]
[0H]
[1H]
[2H]
[3H]
[4H]
[5H]
[6H]
[7H]
8.1.4 Control Register Table (Bank 5)
Functions of Control Registers
The EM65570 has many control registers. When accessing the control registers, the
upper nibble of the data bus (D7~D4) represents the register address while the lower
nibble of the data bus (D3~D0) represents data. The following figure shows an access
example. The Pins CSB, RS, RDB, & WRB) settings are for the 80-family MPU
interface. Only the setting of the terminals RDB & WRB are different when it is
accessed by the 68-family MPU.
„ Example (X Address):
CSB RS WRB RDB RE2 RE1 RE0 D7
D7
0
0
0
0
0
0
0
0
0
0
0
Register address
Pins (for 80-Family) & Bank
D6
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
D5
0
1
1
1
1
1
1
1
1
1
1
Figure 8-1 An Example of Accessing the Control Registers
D4
0
0/1
1
1
1
1
1
1
1
1
1
AX3 AX2 AX1 AX0
D3
0/1
0
0
0
0
0
0
0
0
0
D2
0/1
1
1
1
1
1
1
1
1
1
Data
0
0
0
0
0
0
0
0
1
1
D1
D6
(This specification is subject to change without further notice)
0
0
0
0
1
1
1
1
0
1
D0
Address & Code
D5
0
0
1
1
0
0
1
1
0
1
D4
0 STA3 STA2 STA1 STA0
1
0 SBA3SBA2SBA1SBA0
1
0 SSA3SSA2SSA1SSA0
1
0 SAY3SAY2SAY1SAY0
1
0
1
CSB
0
Product Specification (V1.0) 09.05.2005
D3
TS
T0
*
*
*
*
*
STA6 STA5 STA4
SBA6SBA5SBA4
SSA6SSA5SSA4
SAY6SAY5SAY4
Pins setting
RE2 RE1 RE0
RS
D2
1
*
SM1 SN0
D1
RDB
1
D0
WRB
0
Set scroll top address
Set scroll bottom address
Set scroll specified address
Set scroll start address
Scroll mode select
TST0: for LS1 test, Must set
RE: set register bank
RE2
to "0"
number
0
Function
Register Bank
RE1
0
RE0
0