HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 35

• Manufacturer Part Number: HT-CM400
• Description: Ht Cm400; Ht Rm440 Family; Ht Rm800 Family Interface Protocol Reader - Host
• Manufacturer: NXP Semiconductors

98-02-10
3.7.20 ReadMiro
Sets the read/write device to Permanent Reading Mode for MIRO compatible transponders (e.g.
In this mode you can read either HITAG 2 transponders in Public Mode A or MIRO
transponders.
The unique serial number of a MIRO transponder consists of 5 bytes.
The read/write device attempts continuously to synchronize on and read a MIRO transponder. If
it succeeds and all checks report positive results, the device sends the 5 data bytes via the serial
interface. After that the read/write device returns to Normal Mode.
To put the read/write device back to normal mode, a StopCommand should be sent. Do not use a
Reset, since Reset can cause undesirable side effects (resetting output pins).
MIRO-compatible data protocol for using HITAG 2 transponders in Public Mode A (data is
stored on Pages 4 and 5 of a HITAG 2 transponder):
C-Function: void proloc_ReadMiro (char *data);
Header-File: PROLIB6.H
Serial protocol:
HOST - READ/WRITE DEVICE
READ/WRITE DEVICE - HOST
Status:
EM H400x).
0x02
0x07
9 bit header (= ‘1’)
10 * 4 bit ID data + 10 * 1 bit even parity
4 bits even parity for columns (of ID data nibbles)
last bit (= ‘0’)
total
Status
'M'
-1 ...
0 ... no error
0x4F
data[0]
SERIAL ERROR
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Page 35 (104)
Rev. 1.0
data[4]
BCC
50 bit
64 bit
9 bit
4 bit
1 bit
Communication Reader-Host
Htswp.doc/HS