STMPE811_08 Datasheet, PDF (14/54 Pages) STMicroelectronics – 8-bit port expander with advanced touchscreen controller

SPI interface
5.2.1
SPI timing definition
Table 9. SPI timing specification
Symbol
Description
Min
CS_n falling to
t_CSS
first capture
1
clock
t_CL
Clock low
period
500
t_CH
Clock high
period
500
Launch clock
t_LDI
to MOSI data
valid
Launch clock
t_LDO
to MISO data
valid
t_DI
Data on MOSI
valid
1
Last clock
t_CCS
edge to CS_n
1
high
t_CSH
CS_n high
period
2
t_CSCL
CS_n high to
first clock edge
300
CS_n high to
t_CSZ
tri-state on
1
MISO
Timing
Typ
STMPE811
Unit
Max
μs
ns
ns
20
ns
330
μs
μs
μs
μs
ns
μs
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