Datasheet

I
2
C Interface
The MAX4814E features an I
2
C interface using a
repeated start. The MAX4814E I
2
C interface refers to
the I
2
C bus specification (version 2.1, Jan 2000).
Device Address
The MAX4814E has selectable device addresses
through external inputs. The slave address consists of
four fixed bits (B7–B4, set to 0111) followed by three pin-
programmable bits (AD2–AD0), as shown on Table 7.
MAX4814E
DVI/HDMI 2:4 Low-Frequency Fanout Switch
______________________________________________________________________________________ 11
Table 3a. Input/Output Configurations for DA_, DB_, and DO_
PIN CONFIGURATION
MODE
DA0/DO0 DA1/DO1 DA2/DO2 DB0/DO3 DB1 DB2
0 DA0, Input DA1, Input DA2, Input DB0, Input DB1, Input DB2, Input
1 DO0, Output DO1, Output DO2, Output DO3, Output High Impedance High Impedance
Table 3b. Mode 0 Direct-Control Configurations
PIN CONNECTION
DB1 DB0 DA1 DA0
OPERATION
0 0 0 0 Connect A to SW0 B is high impedance
0 0 0 1 Connect A to SW1 Connect B to SW0
0 0 1 0 Connect A to SW2 Connect B to SW0
0 0 1 1 Connect A to SW3 Connect B to SW0
0 1 0 0 Connect A to SW0 Connect B to SW1
0 1 0 1 Connect A to SW1 B is high impedance
0 1 1 0 Connect A to SW2 Connect B to SW1
0 1 1 1 Connect A to SW3 Connect B to SW1
1 0 0 0 Connect A to SW0 Connect B to SW2
1 0 0 1 Connect A to SW1 Connect B to SW2
1 0 1 0 Connect A to SW2 B is high impedance
1 0 1 1 Connect A to SW3 Connect B to SW2
1 1 0 0 Connect A to SW0 Connect B to SW3
1 1 0 1 Connect A to SW1 Connect B to SW3
1 1 1 0 Connect A to SW2 Connect B to SW3
1 1 1 1 Connect A to SW3 B is high impedance
Note: When switch A and switch B are connected to the same SW_, switch A takes precedence and switch B is high impedance.
PIN CONNECTION
DA2
OPERATION
0 Bank A switches are disabled
1 Bank A switches are enabled. Switch A connections depend on the DA0 and DA1 inputs.
PIN CONNECTION
DB2
OPERATION
0 Bank B switches are disabled
1 Bank B switches are enabled. Switch B connections depend on the DB0 and DB1 inputs.