User's Manual Part 1

13,56 MHz Multitag Reader Module, Version 0.9v
ACG Identification Technologies AT Page 22
Following figure describes the communication settings
Description
8 data bits
No parity bit
1 stop bit
No flow control
Figure 5-10: Communication settings
5.3.3.5 Binary watchdog timer (0Dh)
The binary watchdog timer defines the maximum delay time between two byte in
binary protocol mode sent from the host to the reader. In binary protocol mode the
binary watchdog timer should be enabled in order to detect incomplete or corrupted
frames.
The value FFh is revered and should not be used.
The value 00h sets the timeout to a minimum.
Default value is FEh.
5.3.3.6 Operation mode (0Eh)
The operation mode register defines which tag types the reader supports. This
register enables fast tag recognition because only defined tag types are requested.
Operation mode register
Bit 7
(MSB)
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
(LSB)
RFU RFU
SR176
ISO14443B
ISO1443A
Icode®
Tagit®
ISO15693
Figure 5-11: Operation mode register
5.3.3.7 Timeout value (0Fh)
The timeout value defines the delay time between two responses of the reader. It has
only effect in continuous read mode. To enable the timeout the single shot flag has to
be set. See above protocol configuration register. One timeout slice is 100msec.
Exact timing depends on the used protocol.
Value 00h indicates no delay time.
Default value is 0Ah (1 sec).