LiteOn B17AAU, Руководство по обслуживанию

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Page 5 Circuit Description
B17AAU / B17ANU / B17AAY
8.4.2 Functions
Major function of I315 are as follows:
(1) Expansion of the display screen.
(2) Timing control for various signal types.
(3) Power-supply sequence (LCD panel).
8.5 I
2
C bus control
8.5.1 Related ports of I302
Port Pin No. I/O Signal name Function
P3.5 17 I IICCLK IIC bus clock
P3.4 16 I/O IICDATA IIC bus data
8.5.2 I
2
C-controlled functions
The following functional controls are effected by I
2
C.
(1) Control of EEPROM I305f for parameter setting.
(2) Control of audio preamplifier.
8.4 Control of definition converter LSI I315
Pin No. I/O Signal name Function
R3 I IRQ gmZan1 interrupt signal
P1 O HCLK gmZan1 serial clock
P3, P4,
R1, R2
I/O HDATA gmZan1 serial data
P2 O HFS gmZan1 serial select
8.4.1 Ports related to control