LE910Cx HW User Guide
1VV0301298 Rev. 33
Page 83 of 128
2021-06-29
Not Subject to NDA
Parameter
Comments
Min
Typ
Max
Unit
t(sr)
SD and WS input setup time
16.276
-
-
ns
t(hr)
SD and WS input hold time
0
-
-
ns
t(dtr)
SD and WS output delay
-
65.100
ns
t(htr)
SD and WS output hold time
0
-
-
ns
Table 36: Interface timing
General Purpose I/O
The general-purpose I/O pads can be configured to act in three different ways:
•
Input
•
Output
•
Alternative function (internally controlled)
The Input pads can only be read, reporting the digital values (high / low) present on the
pad at the time of reading. The Output pads can only be written or queried and set values
on the pad output. Pads with alternative function can be internally controlled by the
LE910Cx firmware and act according to the implementation.
The following GPIOs are always available as a primary function on the LE910Cx.
PAD
Signal
I/O
Function
Type
Note
C8
GPIO_01
I/O
Configurable GPIO
CMOS 1.8V
*
C9
GPIO_02
I/O
Configurable GPIO
CMOS 1.8V
C10
GPIO_03
I/O
Configurable GPIO
CMOS 1.8V
C11
GPIO_04
I/O
Configurable GPIO
CMOS 1.8V
B14
GPIO_05
I/O
Configurable GPIO
CMOS 1.8V
*
C12
GPIO_06
I/O
Configurable GPIO
CMOS 1.8V
*
C13
GPIO_07
I/O
Configurable GPIO
CMOS 1.8V
*
K15
GPIO_08
I/O
Configurable GPIO
CMOS 1.8V
*
L15
GPIO_09
I/O
Configurable GPIO
CMOS 1.8V
*
G15
GPIO_10
I/O
Configurable GPIO
CMOS 1.8V
Table 37: Primary GPIOs
Warning: GPIO’s marked with (*) must not be pulled high externally
(from the carrier board) during module power on procedure. Pulling
these pads high during module power up might lead to
unwanted/non-operational boot mode.