PI3HDMI336 Datasheet, PDF (4/22 Pages) Pericom Semiconductor Corporation – 3:1 ActiveEye HDMI Switch with I2C Control & ARC Transmitter

PI3HDMI336
3:1 ActiveEye™ HDMI™ Switch with
I²C Control & ARC Transmitter
Pin Description Cont..
Pin#
30
31
Name
SCL_SINK
SDA_SINK
15
SCL_CTL
14
SDA_CTL
12
INT_OUT
11
16
35, 34, 33
18
17
/OE
I²C_ADR
5V_PORTA, 5V_PORTB,
5V_PORTC
SPDIF_IN
ARC_OUT
IO Type
IO
IO
IO
IO
O
I
I
I
I
O
Descriptions
Sink side DDC Clock
Sink side DDC Data
I²C Clock, compatible with I²C-bus specification, up to
400kb/s.
I²C Data, compatible with I²C-bus specification, up to 400kb/s.
Interrupt pin. Logic status output pin of INT Flag. Open drain
output, set INT_OUT to high by external pull to SV_DD resistor.
Output Enable control. Active low. /OE only disables the high
speed TMDS channel but not the side band signals and I²C
circuitry supplied by SV_DD. Internal pull-down at 100k ohm.
I²C Address LSB; internal pull-down at 100K W.
Connector 5V port. Internal pull down resistor at 100k when
V_DD power on.
Single mode ARC signal input. See page 11 in detail.
Single mode ARC signal output.
I²C Address Byte
b7(MSB)
b6
b5
b4
b3
b2
b1
b0 (R/W)
Address-
Byte
1
0
1
0
1
0
I2C_ADR
1/0 *
I²C Control Register
Byte 0
Bit
7
Descriptions
HDMI input port selection
6
HDMI input port selection
5
TMDS Output Enable
Type
R/W
R/W
R/W
Power Up Condition Logic Settings
0
b[7:6] = 00 Port A
b[7:6] = 01 Port B
b[7:6] = 10 Port C
0
b[7:6] = 11 no port active
See Port Selection truth table
0 = Output Disable
Disabled TMDS channel and enter standby
mode. Side band signals and I²C circuitry
1
are still alive.
1 = Output Enable
See Output Enable control table
12-0237
4
www.pericom.com 07/28/2012