tda8031hl-c107 NXP Semiconductors, tda8031hl-c107 Datasheet - Page 44

no-image

tda8031hl-c107

Manufacturer Part Number
tda8031hl-c107
Description
Usb Smart Card Reader Otp Or Rom
Manufacturer
NXP Semiconductors
Datasheet
Philips Semiconductors
8.5.8
The transceiver interfaces directly to the USB cables
through termination resistors. They are able to transmit
and receive serial data at full speed (12 Mbits/s).
A 1.5 k pull-up resistor is integrated between pins D+
and V
microcontroller; in case a 5% resistor is preferred, it can
be externally connected between pins DELATT and D+
(DELATT is also controlled by software and is floating
when OFF, or connected to V
2003 Jul 04
USB smart card reader (OTP or ROM)
DDD
A
and is connected by software by the
NALOG INTERFACE
DDD
when ON).
44
8.5.9
When the USB interface enters Suspend mode, the
software should set the microcontroller in power-down
mode in order to respect the suspend current condition.
The following sequence should be executed:
1. When the device enters the Suspend mode, it
2. The software should set USB_INT_MASK to logic 1
3. Then it should wait until CLK_EN_N is HIGH before
When the device detects an activity on the bus, it resets
CLK_EN_N to logic 0 and generates an interrupt on pin
INT1. When leaving the Suspend mode, the following
sequence should be executed:
1. The software should read the DEVICE_STATUS to
2. Reset USB_INT_MASK to logic 0.
generates an interrupt on pin INT1
entering power-down mode.
enable the interrupt to be cleared
S
USPEND MODE
TDA8030; TDA8031
Product specification

Related parts for tda8031hl-c107