UPD16434 NEC, UPD16434 Datasheet - Page 43

• Manufacturer Part Number: UPD16434
• Description: 1/8/ 1/16 DUTY LCD CONTROLLER/DRIVER
• Manufacturer: NEC

(1) SRM (Set Read Mode)
performed in the read mode.
(2) SWM (Set Write Mode)
(3) SORM (Set OR Mode)
are automatically transferred to the serial/parallel register.
addressed by the modified data pointer, are automatically transferred into the serial/parallel register for the next
read operation. Afterwards, the same operation is repeated by the CPU, each time an 8-bit data is read.
performed in the write mode.
memory addressed by the current contents of the data pointer. The data pointer is then modified, according to I
Afterwards, the same operation is repeated, each time an 8-bit data is written by the CPU.
performed in the OR mode.
The data processing mode is set to the read mode by this command. Afterwards, data processing will be
When this mode is set, the contents of the data memory, addressed by the current contents of the data pointer,
The data pointer is then modified according to I
When all 8 bits of the serial/parallel register contents are read by the CPU, the contents of the data memory,
The data processing mode is set to the write mode by this command. Afterwards, data processing will be
When this mode is set, the 8-bit data written into the serial/parallel register by the CPU is stored into the data
The data processing mode is set to the OR mode by this command. Afterwards, data processing will be
When this mode is set, the 8-bit data, written into the serial/parallel register by the CPU, is ORed with the data
0
0
0
1
1
1
1
1
1
I
0
0
1
1
1
0
0
0
I
0
1
0
1
0
Automatically incremented (+1) each time a byte of data is processed.
Automatically decremented ( 1) each time a byte of data is processed.
This setting is not allowed.
No modification (the same address is maintained)
0
0
1
0
1
0
I
I
I
1
1
1
Data Sheet S10299EJ4V0DS00
Data pointer contents of modification
I
I
I
0
0
0
1
I
0
.
PD16434
1
I
0
.
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