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PRODUCT SPECIFICATION
RC7104
11
Operation
The RC7104 is programmed by writing 10 bytes of eight bits
each. See Table 3 for byte order.
Table 3. Byte Writing Sequence
Byte
Sequence
1
Byte Name
Slave Address
Bit Sequence
11010010
Byte Description
Commands the RC7104 to accept the bits in Data Bytes 3-6 for
internal register configuration. Since other devices may exist on
the same common serial data bus, it is necessary to have a
specific slave address for each potential receiver. The slave
receiver address for the RC7104 is 11010010. Register setting
will not be made if the Slave Address is not correct (or is for an
alternate slave receiver).
Unused by the RC7104, therefore bit values are ignored (don’ t
care). This byte must be included in the data write sequence to
maintain proper byte allocation. The Command Code Byte is
part of the standard serial communication protocol and may be
used when writing to another addressed slave receiver on the
serial data bus.
Unused by the RC7104, therefore bit values are ignored (don’ t
care). This byte must be included in the data write sequence to
maintain proper byte allocation. The Byte Count Byte is part of
the standard serial communication protocol and may be used
when writing to another addressed slave receiver on the serial
data bus.
Refer to Fairchild SDRAM Buffers. These bytes are not used by
the RC7104.
2
Command
Code
Don’ t Care
3
Byte Count
Don’t Care
4
5
6
7
8
9
10
Data Byte 0
Data Byte 1
Data Byte 2
Data Byte 3
Data Byte 4
Data Byte 5
Data Byte 6
Don’ t Care
Refer to Table 5
The data bits in these bytes set internal RC7104 registers that
control device operation. The data bits are only accepted when
the Address Byte bit sequence is 11010010, as noted above.
For description of bit control functions, refer to Table 4, Data
Byte Serial Configuration Map.