hd61603r ETC-unknow, hd61603r Datasheet - Page 22

• Manufacturer Part Number: hd61603r
• Description: Segment Type Lcd Driver
• Manufacturer: ETC-unknow

How to Input Data
How to Input HD61602 Data
Input data is composed of 8 bits
8-bit data is distinguished from the second one by the sequence only.
If data transfer is interrupted, or at power on, the following two methods can be used to reset the count of
the number of bytes (count of the first and second bytes):
1. Set
2. Input 2 or more “1-byte instruction” data in which bit 7 and 6 are 1 (display data may change).
The data input method via data input terminals (
as HM6116. An access of the LSI can be made through the same bus line as ROM and RAM. When
output ports of a microprocessor are used for an access, refer to the timing specifications and Figure 16.
&6
and
5(
Notes: 1.
CS
WE
RE
READY
SYNC
SB
D0–D7
inputs low (no display data changes).
Power on
2.
3.
4.
5.
6.
7.
READY output is indefinite during 12 clocks after the oscillation start at power on (clock:
OSC2 clock).
High pulse should be applied to SYNC terminal when using two or more chips
synchronously.
In the mode in which READY is always available, READY output is in definite while SYNC
is high.
Reset the byte counter after power on.
READY output period is within 3.5 clocks in the mode setting operation and bit
manipulation or within 10.5 clocks when the display data (8 bits) is updated.
Connect a pull-up resister if WE or RE may be floating.
It is not always necessary to follow this example.
*6
*6
Figure 16 Example of Data Transfer Sequence
*1
2. Take care that the data transfer is not interrupted, because the first
Mode setting data
*4
1st 2nd
&6
,
*5
:(
, D0 to D7) is similar to that of static RAM such
Mode setting data
*2
*3
1st 2nd
*5
Display data
1st 2nd
HD61602/HD61603
*5
1251