User's Manual

Table Of Contents
ACGPass e-ID Desktop Reader, Ver. Dual ISO 2.3
The following table describes the exact baud rates used by the reader.
Baud rate Exact baud rate Difference
9600 baud 9576 baud -0.25 %
19200 baud 19261 baud 0.32 %
38400 baud 38523 baud 0.32 %
57600 baud 58448 baud 1.47 %
115200 baud 113000 baud -1.91 %
230400 baud 241545 baud 4.84 %
460800 baud 483091 baud 4.84 %
Figure 8-11: Exact baud rates
The following table describes the communication settings
Description
8 data bits
No parity bit
1 stop bit
No flow control
Figure 8-12: Communication settings
8.3.6 Command Guard Time (0Dh)
The Command Guard Time is used to ensure that commands are not sent to fast
consecutively. Following commands are sent after the guard time is elapsed. One
time slice is around 37,8us. The longest timeout value is 9,6ms (FFh).
The default value is 20h (1,2ms).
8.3.7 OPMODE, operating mode register (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
RFU
RFU
RFU
SR176
ISO
14443B
ISO
14443A
Figure 8-13: Operation mode register
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