HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 47

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

98-02-10
3.7.30 ReadInput
You can read input-ports of the HITAG Communication Controller by using the command
ReadInput.
ATTENTION:
There are certain restrictions concerning the applied hardware:
In1:
In2:
C-Function: void proloc_ReadInput (BYTE_T *input);
Header-File: PROLIB6.H
Serial protocol:
HOST - READ/WRITE DEVICE
READ/WRITE DEVICE - HOST
input:
Status:
0x02
0x03
Pins are internally pulled up!
Using Philips Semiconductors’ Long Range Readers the state of input In1 is inverted
(input is buffered by an inverting schmitt trigger input driver).
available for Proximity and Long Range Readers
available only for Proximity Readers
Status
7
x
'I'
Proximity Reader (In1,In2):
Long Range Reader (In1):
-1 ...
0 ... no error
6
x
0x4B
input
SERIAL ERROR
5
x
BCC
4
x
3
x
Page 47 (104)
Rev. 1.0
0 ... set (5 V)
0 ... reset (0 V)
2
x
In2
1
In1
0
1 ... reset (0 V)
1 ... set (5 V)
Communication Reader-Host
Htswp.doc/HS