General Purpose I/O - Teli LE910C1-NA Design Manual

LE910Cx HW User Guide
Parameter
t(sr) SD and WS input setup time
t(hr) SD and WS input hold time
t(dtr) SD and WS output delay
t(htr) SD and WS output hold time
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
C8 GPIO_01
C9 GPIO_02
C10 GPIO_03
C11 GPIO_04
B14 GPIO_05
C12 GPIO_06
C13 GPIO_07
K15 GPIO_08
L15 GPIO_09
G15 GPIO_10
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.
1VV0301298 Rev. 33
Comments
I/O Function
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
I/O Configurable GPIO
Page 83 of 128
Not Subject to NDA
Min Typ Max
16.276 - -
0 - -
- 65.100
0 - -
Type
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
CMOS 1.8V
Unit
ns
ns
ns
ns
Note
*
*
*
*
*
*
2021-06-29