I2C Ic Overview - Philips LC4.7E Service Manual

Block Diagrams, Testpoint Overviews, and Waveforms

I2C IC Overview

I2C BUS INTERCONNECTION DIAGRAM
A2
HERCULES
+3V3STBY +3V3STBY
3096 3088
7011
109 SDA
SET
PROCESSOR
108 SCL
PART OF
VIDEO-
PROCESSER
(HERCULES)
+3.3V
3097
104 NVM_WP
7
+3V3STBY +3V3STBY
ERR
6
3085 3083
SW_I2C_SDA
112
N.C.
113 SW_I2C_SCL
A16 PCHD-IO
VGA CONNECTOR
1687
6692 5691
3789
5
9
15
3697 3696
12 SDA_VGA
15 SCL_VGA
11 1
5 6
7693
M24C02
EEPROM
256x8
LC4.7E AA 6.
A1
TUNER IF
ERR
6
F303
F302
3303 3302
5 6 5 4
1301
7099 1302
M24C16 TUNER 1
EEPROM
(NVM)
2
For
COMPAIR 3
ERR ERR only
9 10
DDC_5V
3787
UART_RX
3786
UART_TX
19
A3 A7 A11
HISTOGRAM SCALER
+3V3STBY +3V3STBY
3429 3428
14 11 N1 N2
SDA_IO
P3
7560 7401
TDA9178T GM1501
P4 SCL_IO
HISTOGRAM SCALER
ERR ERR
15 4
NVM_WPP
ADDRESS
DATA
A10
ADDRESS
DATA
SDA_DVI
N.C.
SCL_DVI
FLASH/CONTROL A9 SCALER INTERFACE
+3V3STBY +3V3STBY
3433 3432
7872
PCA9515DP
3871
3 6
3870
2 7
+3V3STBY 5 6
7531
3531
M24C32
EEPROM
ERR
8
7530
M29W040B
FLASH
ROM
512kx8
ERR
4
SDRAM
7501
K4D263238M
SDRAM
1Mx32x4
ERR
14
PLASMA
DISPLAY
1450
SDA_DMA_BUS1_DISP
31
SCL_DMA_BUS1_DISP LVDS
30
CONN.
29
E_14720_004.eps
020904