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SB nº 140: Clarification on the Format of AFL, Byte 1 (Spec Change)

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Specification Bulletin No. 140 First Edition March 2014 Clarification on the Format of AFL, Byte 1 This Specification Bulletin clarifies the format of the AFL, Byte 1 with the three least significant bits as RFU.

Applicability

This Specification Bulletin applies to:

  • EMV Integrated Circuit Card Specifications for Payment Systems Version 4.3 Book 3

Related Documents

  • None

Description

In EMV Book 3, section 10.2 "Read Application Data" describes the following:

  • The five most significant bits of the first byte indicate the SFI. The three least significant bits of the first byte shall be set to zero. This specification bulletin clarifies that the three least significant bits are defined as RFU. Specification Change In EMV Book 3, section 10.2 "Read Application Data", replace the first bullet of the section with the following:
  • The five most significant bits of the first byte indicate the SFI. The three least significant bits are RFU. © 1994-2014 EMVCo, LLC (“EMVCo”). All rights reserved. Any and all uses of the EMV Specifications (“Materials”) shall be permitted only pursuant to the terms and conditions of the license agreement between the user and EMVCo found at http://www.emvco.com/specifications.cfm.