Toshiba T6K04 Handbook page 11

● OP−Amp., OP−Amp. control register
The T6K04 has 5 operational amplifier for supplying LCD driving levels. Power supplying ability of these
OP−Amp. are controlled by the contents of OP−Amp. control register so as to match for various LCD panels.
And, as the other way of controlling operational amplifier, there are the way that ability of operation
amplifier is maximum on a short period from the rising edge of SEG signal and the ability is down on the
other period.
● Display RAM
The display RAM consists of 64 (row) × 128 (column) cells. It is 8192 bits. It is directly bit mapped to the
LCD. The relation of display RAM to LCD is shown in Fig. 8.
When selecting 8 bits per word mode, the display RAM is arranged as 16 pages and each page contains 48
words. When selecting 6 bits per word mode, the display RAM is arranged as 22 pages and each page
contains 34 words. See Fig. 9.
Fig. 8
T6K04
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