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NEO 2 Interface Developer’s Guide
Copyright © 2019, International Technologies & Systems Corporation. All rights reserved.
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Steps to do Issuer Update Processing for Discover D-PAS:
1.
Set TTQ Byte3 Bit8 “Issuer Update Processing supported” to be 1
2.
Use “Activate Transaction Command (02-01)” to do normal Discover D-PAS
transaction and reader will response transaction result and data.
3.
After host receives Online Request from reader, host can send “Activate Transaction
Command (02-01)” to reader with Issuer Scripts(DF51 TLV) in FFEE01 TLV. Then
reader will run Issuer Update Processing and response TVR and TSI.
Special Flow for UICS
For UICS, the special flow code, Issuer Script format, and usage are the same as D-PAS.
Special TLV for PayPass Application
This design connects the M/Chip signal handling to the existing user interface module (“Process
D”) to support MSG and OUT signals in ViVOpay readers with displays.
Reference files
[1]
EMV Contactless Book C-2, Kernel 2 Specification, v2.3
[2]
PayPass Test Cases for PayPass v3.0 Level 2 Reader Testing, Aug 2011
[3]
EMV Contactless Specifications for Payment Systems, Book A, Architecture and General Requirements,
v2.3
[4]
PayPass M/Chip Reader Card Application Interface Specification v3.0.2
[5]
Engineering Specification, MChip 3.0 on GR, v1.6
(1) MSG Signals
MSG Signals are used by other processes to send the User Interface Request Data to Process D.
Process D manages the User Interface Requests as defined in reference [3] and displays a
message and/or a status. The User Interface Request Data is defined in reference [1] as tag
DF8116 and holds twenty-two bytes of data as shown in the table below:
Data Field
Length
Message Identifier
1
Status
1
Hold Time
3
Language Preference
8
Value Qualifier
1
Value
6
Currency Code
2
(2) OUT Signals
OUT Signals are used by the kernel (Process K) to indicate the outcome of a transaction.
According to reference [1] the OUT signal may comprise the following objects.