TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop
TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop
TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop
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Communication Reader-Host Rev. 1.2 February 1999<br />
3.7.35 RWD_Write_Ports<br />
This command changes the status of those port pins of the HITAG Communication Controller<br />
(Port 0) that are configured as outputs.<br />
ATTENTION: To use commands referring to Port 0 you need a special hardware with<br />
connected Port 0 signals is required (Port 0 signals are not available on pin connectors of<br />
Philips Core Modules).<br />
Write accesses to input-configured pins always result in writing ‘1’ (5 V) to the pins.<br />
C-Function: void RWD_Write_Ports (BYTE_T mode, BYTE_T output);<br />
Header-File: HitagRWD.H<br />
Serial protocol:<br />
HOST - READ/WRITE DEVICE<br />
0x04 'o' output Mode BCC<br />
output:<br />
7 6 5 4 3 2 1 0<br />
P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0<br />
mode: 0 ... The bits in -output- are directly written to the output-configured port pins.<br />
1 ... The current status of the output-configured port pins is AND-combined with the<br />
bits in -output-. The result is written to the output-configured port pins.<br />
2 ... The current status of the output-configured port pins is OR-combined with the bits<br />
in -output-. The result is written to the output-configured port pins.<br />
3 ... The current status of the output-configured port pins is EXOR-combined with the<br />
bits in -output-. The result is written to the output-configured port pins.<br />
READ/WRITE DEVICE - HOST<br />
0x02 Status BCC<br />
Status: 0 ... no error<br />
-1 ... SERIAL ERROR<br />
Protokoll HTRM801 V1.2/C Page 52 (107)