Amadis

'D5', 'D6', 'DF16' User Interface Request

Owned by Daniel Boucher (Unlicensed)
Aug 19, 2021
1 min read

The UI Request Data follows the format described in Section 7.1.3.1 of EMVCo Terminal Type Approval – Books A & B – Test Cases:

Size (bytes)

Type

Description

1

b

Message Identifier
See Section 11.2 of EMVCo Book 4 and Section 9.4 of EMVCo Book A

1

b

Transaction Status:
00h                    N/A
01h                    Not Ready
02h                    Idle
03h                    Ready to Read (Present Card)
04h                    Processing
05h                    Card Read Successfully (Remove Card)
06h                    Processing Error

2

b

Hold Time
0000h-FFFFh    Time in units of 100ms

2,4,6,8

an2

Language Preference (ISO 639-1)
0000h when ICC provided no Language Preference

1

b

Value Qualifier:
00h                    N/A
01h                    Amount
02h                    Balance

6

n12

Value (BCD)

2

n3

Currency Code (ISO 4217)

NOTE: The Total Length of the User Interface Request may be either 15, 17, 19 or 21 depending upon Length of Language Preference (Tag ‘5F2D’) from the ICC (2, 4, 6 or 8 bytes). Default Language Preference = 0000h when none provided by the ICC (i.e. no Tag ‘5F2D’ from ICC)