User's Manual

BT85x Series
Datasheet
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
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NVRAM may contain configuration information about the customer application, including the following:
 Fractional-N information
 BD_ADDR
 UART baud rate
 USB enumeration information
 SDP service record
 File system information used for code, code patches, or data
Figure 11 and Table 16 define the timing requirements for the BSC interface.
Figure 11: BSC interface timing diagram
Table 16: BSC interface timing specifications
Ref No. Characteristics Minimum Maximum Unit
1 Clock frequency -
100
400
800
1000
kHz
2 START condition setup time 650 - ns
3 START condition hold time 280 - ns
4 Clock low time 650 - ns
5 Clock high time 280 - ns
6 Data input hold time 0 - ns
7 Data input setup time 100 - ns
8 STOP condition setup time 280 - ns
9 Output valid from clock - 400 ns
10 Bus free time 650 - ns