¡ Semiconductor
ML9041
Arbitrator RAM (ABRAM)
The arbitrator RAM(ABRAM) stores arbitrator display data.
The ABRAM address is set at the ADC with the relationship illustrated below. Its valid address
area is 00 to 19 (00H to 13H).
Although an address exceeding 19 (13H) can be set or the address already set may exceed it due
to automatic increment or decrement processing, any address out of the valid address area is
ignored.
The cursor or blink is also displayed even when a CGRAM or ABRAM address is set in the ADC.
Therefore, the cursor or blink display should be inhibited while the ADC is hoding a CGRAM
or ABRAM address.
DB6 DB5 DB4 DB3 DB2 DB1 DB0
ADC
MSB
LSB
Hexadecimal
Hexadecimal
The arbitrator RAM can store a maximum of 100 dots of the arbitrator Display–ON data in units
of 5 dots.
The arbitrator display is not shifted by any instructions and has the following relationship with
the LCD display positions:.
Configuration of input display data
Input data
Relationship between display-ON
data and segment pins
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
5XSn+1
5XSn+5
*
*
*
E4 E3 E2 E1 E0
*Don't Care
Display - ON data
E4
E4
Sn = ABRAM address (0 to 19)
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OKI [ OKI ELECTRONIC COMPONETS ]
