BCM20705 Datasheet, PDF (63/67 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver and Baseband Processor

BCM20705 Data Sheet
Timing and AC Characteristics
BSC Interface Timing
Table 26: BSC Interface Timing Specifications
Reference Characteristics
Minimum Maximum Unit
1
Clock frequency
2
START condition setup time
3
START condition hold time
4
Clock low time
5
Clock high time
6
Data input hold time^a
7
Data input setup time
8
STOP condition setup time
9
Output valid from clock
10
Bus free time^b
–
100
kHz
400
800
1000
650
–
ns
280
–
ns
650
–
ns
280
–
ns
0
–
ns
100
–
ns
280
–
ns
–
400
ns
650
–
ns
a. As a transmitter, 300 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 17: BSC Interface Timing Diagram
SCL
2
SDA
IN
SDA
OUT
1
5
3
4
67
9
8
10
Broadcom®
Bluetooth Transceiver and Baseband Processor
November 13, 2014 • MCS20705-DS104-R
Page 62
BROADCOM CONFIDENTIAL