MAX11041_10 Datasheet, PDF (10/17 Pages) Maxim Integrated Products – Wired Remote Controller

Wired Remote Controller
S
SDA
0
1
0
0
SCL
1
2
3
4
Figure 6. Slave Address and R/W Bit
S
SDA
0
A1
5
6
A2
R/W
ACK
7
8
9
P
SCL
Figure 7. START and STOP Conditions
S
SDA
SCL
1
2
NOT ACKNOWLEDGE
ACKNOWLEDGE
8
9
Figure 8. Acknowledge Bits
4) The MAX11041 sends the latest keypress type
(K7–K0) stored in the FIFO starting with the most-
significant bit. Afterwards the master must send an
ACK bit.
5) The MAX11041 sends the corresponding keypress
time duration (OF, T6–T0) stored in the FIFO start-
ing with the most significant bit (OF). Afterwards the
master must send an ACK bit.
6) The master must generate a STOP condition.
Slave Address and R/W Bit
The MAX11041 includes a 7-bit slave address. The first
5 bits (MSBs) of the slave address are factory-pro-
grammed and always 01000. The logic state of the
address inputs (A1 and A0) determine the last two
LSBs of the device address (see Figure 6). Connect A1
and A0 to V_DD (logic high) or GND (logic low). A maxi-
mum of four MAX11041 devices can be connected on
the same bus at one time using these address inputs.
The 8th bit of the address byte is a read/write bit (R/W).
If this bit is set to 0, the device expects to receive data.
If this bit is set to 1, the device expects to send data.
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