EM65101AF EMC [ELAN Microelectronics Corp], EM65101AF Datasheet - Page 19

• Manufacturer Part Number: EM65101AF
• Description: 128COM/160SEG 16 Gray Scale Level LCD Driver
• Manufacturer: EMC [ELAN Microelectronics Corp]

7
Product Specification (V0.4) 08.15.2005
(This specification is subject to change without further notice)
Functional Description
7.1 MPU Interface
7.1.1 Reset Pin Description (RESB)
Hold the RESB at low for at least 40us after which the EM65101 accepts this reset
command.
7.1.2 Selection of Interface Type
The EM65101 transfers data through the 8-bit parallel I/O (D7-D0) or serial data input
(SDA, SCL)
serial interface is selected, you are allowed to write data but data reading is not
allowed.
7.1.3 Parallel Input
When the parallel interface is selected with the P/S pin, the EM65101 allows data to be
transferred in parallel to an 8-bit MPU through the data bus
use the M86 pin to select either the 80-family or the 68-family MPU interface.
7.1.4 Read/Write Functions of the Register and Display RAM
The EM65101 have four read/write functions in parallel interface mode
read/write function is selected by combinations of RS, RDB, and WRB signals.
M86
P/S
H
H
L
L
RS
1
1
0
0
I/F Type
68-family MPU
80-family MPU
Parallel
Serial
MPU Type
68-family
.
R/WB
You can use the P/S pin to select the parallel or serial interface. When the
1
0
1
0
CSB
CSB
CSB
CSB
CSB
CSB
Figure 7-1 RESB Timing
RESB
RS
RS
RS
RDB
0
1
0
1
80-family
RS
RS
RS
RDB
RDB
128COM/160SEG 16 Gray Scale Level LCD Driver
T > 40uS
-
WRB
WRB
WRB
RDB
RDB
1
0
1
0
E
-
M86
M86
R/WB
WRB
WRB
-
Read internal Register
Write internal Register
Read display data
Write display data
SDA
SDA
-
.
For the 8-bit MPU, you can
Function
SCL
SCL
-
D7~D0
D7~D0
Data
.
Each
EM65101
D7~D0
Data
-
• 13