FM1288-GE View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
FM1288-GE Datasheet PDF : 60 Pages
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3. Accessing FM1288 Through EEPROM, UART, SHI
INTERFACE
Power Up/Reset
system parameter initialization
Runtime
Control and parameter modification
EEPROM
Yes
No
UART
Yes
Yes
SHI
Yes
Yes
Figure 20: Accessing FM1288
Should the initialization of FM1288 need be done through UART/SHI, then the system needs to wait at
least 25ms after initial power up before commencing the initialization.
During runtime, users can read or write to registers in FM1288 through one of the two interfaces: UART,
or SHI. To access the registers in FM1288, designers must use a pre-defined command entry pattern.
The UART or SHI interfaces are used if applications require control through an external host.
These interfaces can also be used to perform power up and reset system parameter initialization when
they are connected to a host processor. As an option, the content in a supported IIC EEPROM can be
automatically loaded into the registers after reset.
Command Byte
Address Byte(s)
Data Byte(s)
Figure 21: Command Entry Data Pattern
The table below shows the available command entries and the associated number of bytes required for
each entry.
Command Entry
Mem_write
Mem_read
Short_reg_write
Long_reg_write
reg_read
Table 9: Command Entries
Available for
Interface
UART, SHI, EEPROM
UART, SHI
UART, SHI
UART, SHI
UART, SHI
Command Byte
0x3B
0x37
68
6A
60
No. of
Address
Bytes
2
2
1
1
1
No. of
Data
Bytes
2
0
1
2
0
Total No. of
Bytes
5
3
3
4
2
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