EM65571
130COM/128SEG 65K Color STN LCD Driver
6.5 Oscillating Circuit Pin
Symbol
I/O
Description
Display timing clock source select input pin.
CKS = “H”: Use external clock from the CK pin.
CKS = “L”: Use internal oscillator clock.
CKS
I
In the case of TCP, draw it as a separate terminal.
External clock input pin for display timing (CKS=1).
CK
I
When using internal oscillator clock, connect CK to VSS (CKS=0).
6.6 EEPROM Power Pin
Symbol
I/O
Description
External power supply pin for EEPROM programming or erasing.
VPP
I
When using external power for EEPROM programming or erasing, the
power supply is 16V~18V.
7 Functional Description
7.1 MPU Interface
7.1.1 Reset Pin Description (RESB)
Hold the RESB low for at least 10µs, then the EM65571 accepts this reset
command.
RESB
T > 10猶
7.1.2 Selection of Interface Type
The EM65571 transfers data through an 8-bit parallel I/O (D7-D0), 16-bit parallel
I/O (D15-D0) or serial data input (SDA, SCL). The parallel interface or serial
interface can be selected by the state of the P/S pin. When selecting serial
interface, data reading cannot be performed, only data writing can operate.
I/F
P/S
CSB
RS
RDB
WRB
M86
SDA
SCL
Data
Type
Parallel CSB
Serial CSB
D7~D0
(D15~D0)
H
L
RS
RS
RDB
-
WRB
-
M86
-
-
-
SDA
SCL
-
Product Specification (V1.0) 08.04.2005
• 17
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
