Product Info

Cinterion
®
TX62-W(-B/-C)/TX82-W Hardware Interface Description
2.1 Application Interface
69
t TX62-W_TX62-W-x_TX82-W_HID_v01.000 2021-05-19
Confidential / Preliminary
Page 26 of 154
Emergency
reset
EMERG_RST I R
I
 1k, C
I
 1nF (internal low pass
filter)
V
IH
min = 1.3V
V
IL
max = 0.5V at ~1µA
¯¯|___|¯¯ low impulse width > 800ms
This line must be driven
low by an open drain or
open collector driver con-
nected to GND.
If unused keep lines
open.
Test point recommended.
USB VUSB_IN I V
I
min = 3V
V
I
max = 5.25V
Active and suspend current:
I
max
< 100µA
All electrical characteris-
tics according to USB
Implementers' Forum,
USB 2.0 Specification.
If unused keep lines
open.
Used for tracing pur-
poses only.
Test points recommended.
USB_DN I/O Full and high speed signal characteris-
tics according USB 2.0 Specification.
USB_DP
Serial
Modem
Interface
ASC0
RXD0 O V
OL
max = 0.45V at I = 4.5 mA
V
OH
min = 1.20V at I = 2.5 mA
V
OH
max = 1.95V
If unused keep lines
open.
RTS0 can be used to
wakeup the module from
SLEEP mode, but not
from SUSPEND/PSM
mode.
Test points recommended
for RXD0, TXD0, RTS0,
and CTS0.
CTS0 O
DSR0 O
DCD0 O
RING0 O
TXD0 I V
IL
max = 0.5V
V
IH
min = 1.3V
V
IH
max = 1.95V
RTS0 I
DTR0 I
Serial
Modem
Interface
ASC1
RXD1 O V
OL
max = 0.45V at I = 4.5 mA
V
OH
min = 1.20V at I = 2.5 mA
V
OH
max = 1.95V
If unused keep lines
open.
Test points recommended
for RXD1, TXD1, RTS1,
and CTS1.
With embedded process-
ing option ASC1 lines are
shared with SPI interface
lines, see Section 2.1.8.
CTS1 O
TXD1 I V
IL
max = 0.5V
V
IH
min = 1.3V
V
IH
max = 1.95V
RTS1 I
Table 3: Signal properties
Function Signal name IO Signal form and level Comment