ASI4UC-G1-SR-7 ZMDI, ASI4UC-G1-SR-7 Datasheet - Page 46

• Manufacturer Part Number: ASI4UC-G1-SR-7
• Description: Interface - Specialized ASI
• Manufacturer: ZMDI

Specifications of ASI4UC-G1-SR-7

• Product Category: Interface - Specialized
• Rohs: yes
• Product Type: Actuator Sensor Interface IC
• Operating Supply Voltage: 16 V to 33.1 V
• Supply Current: 6 mA
• Maximum Power Dissipation: 850 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 25 C

3.9. LED outputs
3.9.1.
The ASI4U provides two LED pins for enhanced status indication. LED1 and LED2 both contain NMOS open
drain output drivers. In addition, LED2 contains a high voltage high impedance input stage for purposes of the
IC production test.
For compatibility to A²SI board layouts, where pin number 23 (former U5RD) had to be connected to U5R, the
LED2 function is turned OFF by default, keeping LED2 always at high impedance state. This is to protect
LED2
Enhanced_Status_Indication flag and/or the Dual_LED_Mode flag are set in the E²PROM.
In order to comply with the signaling schemes defined in the AS-i Complete Specification a red LED shall be
connected to LED1 and a green LED shall be connected to LED2. Direct operation of a Dual LED is also
supported but requires the Dual_LED_Mode flag to be set. This is because LED1 and LED2 need to be
controlled differently for AS-i compliant Dual LED signaling.
Following status indication is supported
Table 27: LED status indication
Symptom
Power Off
Normal operation
No data exchange
No data exchange
(Address = 0)
Periphery Fault
Serious Periphery
Fault with Reset
The flashing frequency of any flashing status indication is around 2 Hz.
Data Sheet
January 30, 2012
ASI4U / ASI4U-E
Spec. 3.0 Com
against
Slave Mode
© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.1
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to
changes without notice.
shorting
pliant Universal AS-I IC
Standard Status Indication
Normal
green
green
green
gree
n
the
red
red
red
red
5V
Dual LED Normal
alternating
supply
green
gree
red
green
red/
n
Extended Status Indication
alternating
(U5R)
green
gree
green
green
green
green
n
to
red
red
red
red
red
red
ground.
Dual LED
alternating
green
gree
red
yellow
green
red
red/
red
n
LED2
Note
No power supply available
Data
established
The
flag is still set, prohibiting Data
Port
waiting for a Write_Parameter
request.
The Communication Monitor has
detected No Data Exchange
status or the IC was reset by
Watchdog IC Reset.
Slave is waiting for address
assignment.
Data Port communication is not
possible.
Periphery Fault signal generated
at FID input.
Data Strobe driven LOW for
more than 44µs.
will
communication.
be
Data_Exchange_Disable
communication
activated
46 of 63
if
IC
the
is
is