BCM20707 Datasheet, PDF (49/65 Pages) Cypress Semiconductor – Complies with Bluetooth Core Specification version 4.2 including BR/EDR/BLE

BCM20707 Preliminary Data Sheet
Timing and AC Characteristics
SPI Timing
The SPI interface can be clocked up to 12 MHz.
Table 19 and Figure 11 show the timing requirements when operating in SPI Mode 0 and 2.
Table 19: SPI Mode 0 and 2
Reference
1
2
3
4
5
6
7
8
Characteristics
Time from slave assert SPI_INT to master assert SPI_CSN
(DirectRead)
Time from master assert SPI_CSN to slave assert SPI_INT
(DirectWrite)
Time from master assert SPI_CSN to first clock edge
Setup time for MOSI data lines
Hold time for MOSI data lines
Time from last sample on MOSI/MISO to slave deassert
SPI_INT
Time from slave deassert SPI_INT to master deassert
SPI_CSN
Idle time between subsequent SPI transactions
Minimum Maximum Unit
0
∞
ns
0
∞
ns
20
∞
ns
8
1_{/2 SCK}
ns
8
1_{/2 SCK}
ns
0
100
ns
0
∞
ns
1 SCK
∞
ns
Figure 11: SPI Timing, Mode 0 and 2
SPI_CSN
SPI_INT
(DirectWrite)
SPI_INT
(DirectRead)
SPI_CLK
(Mode 0)
SPI_CLK
(Mode 2)
SPI_MOSI
2
1
3
4
5
-
First Bit
Second Bit
SPI_MISO Not Driven
First Bit
Second Bit
8
6
7
Last bit
Last bit
-
Not Driven
Broadcom^®
May 27, 2016 • 20707-DS206-R
BROADCOM CONFIDENTIAL
Bluetooth SoC
Page 48