MM1495XD MITSUMI, MM1495XD Datasheet - Page 17

• Manufacturer Part Number: MM1495XD
• Description: I2C BUS Control 5-Input 2-Output AV Switch Monolithic IC
• Manufacturer: MITSUMI

MITSUMI
[Status registers]
Status registers are data to inform the master of the device status.
The data format is set as shown in the following figure.
Out of the Address byte, first 7bit are assigned to the slave address, while the residual 1bit is assigned to the
R/W bit.
Set the R/W bit to 1 when data are used status registers.
As MM1495 slave address, either 91H or 93H can be selected according to the ADR terminal conditions.
When ADR terminal is L, 91H is selected.
Set the confirmation acknowledgement after the end of status register to non-acknowledgement.
The following figure shows the correspondence of the output data of status registers.
I/O3 Low I/O3 High I/O2 Low I/O2 High I/O1 Low I/O1 High
S
Sync sepa select
Output port switching
output
Video
Video
b37
input
I/O1
I/O2
I/O3
Port
O4
O5
1
Mode
Mode
0
Condition
b36
Slave address
V
V
Open
Open
Open
Open
Open
Y
Low
Low
Low
Low
Low
0
TV
V2
V1
OUT
OUT
S2
S1
OUT
Address byte
2
1
1
Input port detect
b35
0
Y/V
Y/V
Output
V
V
V
V
V
Y
b27
IN
IN
IN
OUT
OUT
*
*
*
*
OUT
0
1
IN
IN
TV
V2
V1
0
S2
S1
2
1
0/1
b34
R/W
b22
b26
1
*
*
*
*
1
1
0
0
0
1
1
0
0
1
Output port switching
A
Sync sepa select
b33
b37 b36 b35 b34 b33 b32 b31 b30
Bus data
Bus data
I
2
C BUS Control 5-Input 2-Output AV Switch MM1495X
b21
b25
*
*
*
*
1
0
1
1
0
1
0
0
0
1
b32
Status register
device status
b20
b24
*
*
*
*
0
0
1
0
0
1
1
1
0
1
C
b31
IN
S2
S detect
b23
*
*
*
*
0
1
C
b30
IN
S1
NA
P