7-7
9.4.2 Functions
Major function of I306 are as follows:
(1) Expansion of the display screen.
(2) Timing control for various signal types.
(3) Power-supply sequence (LCD panel).
9.5 I
2
C bus control
9.5.1 Related ports of I306
Post Pin No. I/O Signal name Function
P3.5 14 O IICCLK IIC bus clock
P3.4 13 I/O IICDATA IIC bus data
9.6 Power ON sequence
When the POWER switch is pressed, the POWER OFF signal is turned “H”. When this “H” potential is
detected, the CPU begins to establish the respective power supplies according to the sequence shown
below.
POWER
PPWR
DOTCLK
INV_EN
LED
DATA
140ms or more
100ms or more
430ms or more
110ms
To Next Page
Loading...
Need help?
General