SLRC400 Datasheet, PDF (26/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
5.2.1.8 InterruptRq Register
Interrupt request flags.
Name: InterruptRq
7
6
SetIRq
0
Access
w
r/w
Rights
Address: 0x07
5
TimerIRq
dy
4
TxIRq
dy
Reset value: 00000000, 0x00
3
RxIRq
dy
2
IdleIRq
dy
1
HiAlertIRq
dy
0
LoAlertIRq
dy
Description of the bits
Bit
Symbol
7
SetIRq
6
0
5
TimerIRq
4
TxIRq
3
RxIRq
2
IdleIRq
1
HiAlertIRq
0
LoAlertIRq
Function
Set to 1 SetIRq defines that the marked bits in the InterruptRq Register are set.
Set to 0 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.
CalcCRC Command: All data is processed.
WriteE2 Command: All data is programmed.
This bit is set to 1, when the receiver terminates.
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.
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.
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.
26
Preliminary