User's Manual
Table Of Contents
- Safety Instructions / Warning - Read before start-up!
- Preface
- 1 Scope
- 2 Extended Documentation
- 3 Definitions and Abbreviations
- 4 Supported tags
- 5 The mifare® Transponder Family
- 6 ISO 14443 Type B
- 7 Hardware
- 8 Software for contactless interface functions
- 8.1 ASCII Protocol
- 8.2 Binary Protocol
- 8.3 Register Set
- 8.3.1 EEPROM memory organization
- 8.3.2 Unique device ID (00h – 04h)
- 8.3.3 Station ID (0Ah)
- 8.3.4 Protocol configuration (0Bh)
- 8.3.5 BAUD, Baud rate control register (0Ch)
- 8.3.6 Command Guard Time (0Dh)
- 8.3.7 OPMODE, operating mode register (0Eh)
- 8.3.8 Single Shot Time-out (0Fh)
- 8.3.9 Protocol configuration 2 (13h)
- 8.3.9.1 Disable multi-tag reset (default 0)
- 8.3.9.2 Disable start-up message (default 0)
- 8.3.9.3 Enable binary frame v2 (default 0)
- 8.3.9.4 Noisy Environment (default 0)
- 8.3.9.5 Reset Recovery Time Multiplier (default 0)
- 8.3.9.6 Enable ISO14443 B Anti-collision (default 0)
- 8.3.9.7 Disable ISO 14443-4 Error Handling (default 0)
- 8.3.10 Reset Off Time (14h)
- 8.3.11 Reset Recovery Time (15h)
- 8.3.12 Application Family Identifier (16h)
- 8.3.13 Selection Time-out ISO 14443A (17h)
- 8.3.14 Selection Time-out ISO 14443B (18h)
- 8.3.15 Selection Time-out SR176 (19h)
- 8.3.16 Protocol configuration 3 (1Bh)
- 8.3.17 User data (80h - EFh)
- 8.4 Instruction Set
- 8.4.1 Overview
- 8.4.2 Error Codes
- 8.4.3 Common commands
- 8.4.3.1 Test Continuous Read
- 8.4.3.2 Continuous Read
- 8.4.3.3 Set LED
- 8.4.3.4 DES encryption / decryption of data
- 8.4.3.5 Get ID
- 8.4.3.6 Multi-Tag Selection / List
- 8.4.3.7 Include tag type
- 8.4.3.8 Exclude tag type
- 8.4.3.9 Set tag type
- 8.4.3.10 Set Configuration Flags
- 8.4.3.11 Set Configuration Register
- 8.4.3.12 Antenna power on/off
- 8.4.3.13 Read/Write user port
- 8.4.3.14 Quiet
- 8.4.3.15 Read block
- 8.4.3.16 Read reader EEPROM
- 8.4.3.17 Select
- 8.4.3.18 Get Version
- 8.4.3.19 Write DESFire key
- 8.4.3.20 Write master key
- 8.4.3.21 Write block
- 8.4.3.22 Write EEPROM
- 8.4.3.23 Reset
- 8.4.3.24 Field Reset
- 8.4.4 ISO 14443 Type A only commands
- 8.4.5 SR176 only commands
- 8.4.6 DESFire command set
- 8.4.6.1 Authenticate
- 8.4.6.2 Change Key Settings
- 8.4.6.3 Get Key Settings
- 8.4.6.4 Change Key
- 8.4.6.5 Get Key Version
- 8.4.6.6 Create Application
- 8.4.6.7 Delete Application
- 8.4.6.8 Get Application IDs
- 8.4.6.9 Select Application
- 8.4.6.10 Format PICC
- 8.4.6.11 Get Version
- 8.4.6.12 Get File IDs
- 8.4.6.13 Get File Settings
- 8.4.6.14 Select File
- 8.4.6.15 Change File Settings
- 8.4.6.16 Create Standard Data File
- 8.4.6.17 Create Backup Data File
- 8.4.6.18 Create Value File
- 8.4.6.19 Create Linear Record File
- 8.4.6.20 Create Cyclic Record File
- 8.4.6.21 Delete File
- 8.4.6.22 Read Data / Records
- 8.4.6.23 Data files
- 8.4.6.24 Record file
- 8.4.6.25 Write Data / Record
- 8.4.6.26 Get Value
- 8.4.6.27 Credit
- 8.4.6.28 Debit
- 8.4.6.29 Limited Credit
- 8.4.6.30 Clear Record File
- 8.4.6.31 Commit Transaction
- 8.4.6.32 Abort Transaction
- 9 Software for contact interface functions
- 10 Frequently Asked Questions
- 11 References
- 12 Appendix A: SAM
- 13 Appendix C: Timings
- 14 Appendix D: Release Notes
- 15 Appendix F: Approvals / Certificates
ACGPass e-ID Desktop Reader, Ver. Dual ISO 2.3
8.4.6.28 Debit
This command decreases a value in a selected value file. All value manipulation
commands are accumulated in a shadow register. This shadow register is only
written after a successful commit transaction command.
Command
Command Data
19h Data (4 bytes)
Answer
Answer Description
Data Status code (1 byte)
00h Success
'N' Error: No tag in field
xxh DESFire status / error code, refer to DESFire documentation
Example
Command Description
f051944332211 Answer: 00
The value 11223344h is charged from the
selected value file.
ASSA ABLOY Identification Technologies GmbH 121