User's Manual

4.1.16 USART SPI
SPI Master Timing
Table 4.26. SPI Master Timing
Parameter Symbol Test Condition Min Typ Max Unit
SCLK period
1, 2
t
SCLK
2 *
t
HFPERCLK
— — ns
CS to MOSI
1, 2
t
CS_MO
0 — 8 ns
SCLK to MOSI
1, 2
t
SCLK_MO
3 — 20 ns
MISO setup time
1, 2
t
SU_MI
IOVDD = 1.98 V 56 — — ns
IOVDD = 3.0 V 37 — — ns
MISO hold time
1
,
2
t
H_MI
6 — — ns
Note:
1.
Applies for both CLKPHA = 0 and CLKPHA = 1 (figure only shows CLKPHA = 0)
2.
Measurement done with 8 pF output loading at 10% and 90% of V
DD
(figure shows 50% of V
DD
)
CS
SCLK
CLKPOL = 0
MOSI
MISO
t
CS_MO
t
H
_MI
t
SU_MI
t
SCKL_MO
t
SCLK
SCLK
CLKPOL = 1
Figure 4.1. SPI Master Timing Diagram
BGM113 Blue Gecko Bluetooth
®
Smart Module
Data Sheet
Electrical Specifications
silabs.com | Smart. Connected. Energy-friendly. Preliminary Rev. 0.93 | 34