CLRC632 Datasheet, PDF (30/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
5.2.1.8 InterruptRq Register
Interrupt request flags.
Name: InterruptRq
Address: 0x07
Product Specification Rev. 3.0; May 2003
CL RC632
Reset value: 00000000, 0x00
Access
Rights
7
SetIRq
w
6
5
4
3
2
1
0
0
TimerIRq TxIRq
RxIRq IdleIRq HiAlertIRq LoAlertIRq
r/w
dy
dy
dy
dy
dy
dy
Description of the bits
Bit
Symbol
7
SetIRq
6
0
5
TimerIRq
4
TxIRq
Function
Set to 1, SetIRq defines that the marked bits in the InterruptRq Register are set.
Set to 0 SetIRq defines, that the marked bits in the InterruptRq Register are
cleared.
Reserved for future use.
Set to 1, when the timer decrements the TimerValue Register to zero.
Set to 1, when one of the following events occurs:
Transceive Command: All data transmitted.
Auth1 and Auth2 Command: All data transmitted.
WriteE2 Command: All data is programmed.
CalcCRC Command: All data is processed.
3
RxIRq
This bit is set to 1, when the receiver terminates.
2
IdleIRq
This bit is set to 1, when a command terminates by itself e.g. when the Command
Register changes its value from any command to the Idle Command.
If an unknown command is started bit IdleIRq is set.
Starting the Idle Command by the µ-Processor does not set bit IdleIRq.
1
HiAlertIRq This bit is set to 1, when bit HiAlert is set. In opposite to HiAlert, HiAlertIRq stores
this event and can only be reset by means of bit SetIRq.
0
LoAlertIRq This bit is set to 1, when bit LoAlert is set. In opposite to LoAlert, LoAlertIRq
stores this event and can only be reset by means of bit SetIRq.
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