T6K04
2001-03-13 7/30
●
Counter select resister
The
1
bit data stored in this register selects X
−
address counter or Y (Page)
−
address counter.
●
Display ON / OFF register
This
1
bit register holds the display ON or OFF state. In the OFF state, the output data turn to V
DD
level.
In the On state, the display data appears according to the display RAM data. The display ON or OFF state
does not affect the data of display RAM.
●
Z
−
address register
This 6 bit register holds the data that indicates the display start line.
●
Word length register
The
1
bit data stored in this register selects the word length, 8 bits per word or 6 bits per word.
●
Word length change circuit
This circuit is controlled by the word length register. In case of 8 bits per word, data is transferred by 8 bits.
In case of 6 bits per word, the way of data transfer is show in Fig. 2 as follows.
Fig. 2
●
Oscillator
The T6K04 has an on
−
chip oscillator. When using this oscillator, connect an external resistor between OSC
1
and OSC2, when using external clock, input the clock to OSC
1
and open OSC2, as shown in Fig. 3.
Fig. 3
●
Timing generation circuit
The circuit divides the signals from the oscillator and generates display timing signals and operating clock.
●
Shift
−
register
The T6K04 has two 32 bit shift
−
register. These shift
−
register construct 64 bits shift
−
register.
●
Latch circuit
This latch circuit latches the data from the display RAM.
