BCM20706 Data Sheet
Timing and AC Characteristics
BSC Interface Timing
The specifications in Table 20 references Figure 12.
Table 20: BSC Interface Timing Specifications (up to 1 MHz)
Reference
Characteristics
Minimum Maximum Unit
1
Clock frequency
–
100
400
800
1000
–
kHz
2
3
4
5
6
START condition setup time
START condition hold time
Clock low time
650
280
650
280
0
ns
ns
ns
ns
ns
–
–
Clock high time
–
a
–
Data input hold time
7
Data input setup time
100
280
–
–
ns
ns
ns
ns
8
STOP condition setup time
Output valid from clock
–
9
400
–
b
10
650
Bus free time
a. As a transmitter, 125 ns of delay is provided to bridge the undefined region of the falling edge of SCL to avoid
unintended generation of START or STOP conditions.
b. Time that the CBUS must be free before a new transaction can start.
Figure 12: BSC Interface Timing Diagram
1
5
SCL
2
8
6
4
3
7
SDA
IN
10
9
SDA
OUT
Broadcom®
May 19, 2016 • 20706-DS202-R
Bluetooth SoC
Page 44
BROADCOM CONFIDENTIAL
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