NEO 2 Interface Developer’s Guide
Copyright © 2019, International Technologies & Systems Corporation. All rights reserved.
223
Special Flow Record Format
Byte #
Field
1
Application Flow Code
This is the card application for which this special flow entry is being defined. This can be any
of the Application Flows defined for the ViVOtech2 “Set Configurable AID” such as Discover
D-PAS. This also can be any special Application Flow that not use ViVOtech2 “Set
Configurable AID” such as SmartTap.
2
Special Transaction Flow Flags
This byte defines the nature of the special flow and indicates whether the Application Flow
defined in the previous byte occurs during pre-PPSE or post-PPSE processing. It also
indicates whether a standard ISO Transaction will be performed in between pre-PPSE and
post-PPSE processing or skipped.
The flags within this byte are given below.
B7 B6 B5 B4 B3 B2 B1 B0 Flag Description
0
0
0
0
0
Unused. Set to 0
1
Perform
Post-PPSE Transaction
1
Perform
Pre-PPSE Transaction
1
Perform ISO Payment
Transaction (PPSE+AID)
3
Special Transaction Type Flags for Pre-PPSE Processing
This byte indicates the type of special (non-payment) transaction that will be performed in
the Pre-PPSE transaction processing (if any).
The flags within this byte are given below.
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Flag Description
0
0
0
0
0
0
Unused. Set to 0
1
Write Transaction
1
Read Transaction
4
Special Transaction Type Flags for Post-PPSE Processing
This byte indicates the type of special (non-payment) transaction that will be performed in
the Post-PPSE transaction processing (if any).
The flags within this byte are given below.
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Flag Description
0
0
0
0
0
0
Unused. Set to 0
1
Write Transaction
1
Read Transaction
Special Flow for Discover D-PAS
For Discover D-PAS, Application Flow Code is 14 (0Dh).
For Discover D-PAS 2
nd
Presentment of Issuer Update Process, the value in the Special Flow
TLV will be:
Pre-PPSE Write D-PAS On-Line Script Processing DF50 04 0D 02 02 00
The 0xFFEE01 TLV format for Discover D-PAS when input Issuer Script for Issuer Update
Processing:
FFEE01 <len> DF50 04 0D020200 DF51 <len> <Issuer Script>
<Issuer Script> is defined by D-PAS spec.