Datasheet

Section 16 CIR Interface
Rev. 2.00 Sep. 28, 2009 Page 474 of 994
REJ09B0452-0200
16.3.3 Receive Status Register (CSTR)
CSTR indicates the data reception state of the CIR.
Bit Bit Name
Initial
Value
R/W Description
7 CIRBUSY 0 R CIR Busy Flag
Indicates the data receive state of the CIR.
[Setting condition]
When the CIR starts data reception.
[Clearing condition]
When the CIR has finished data reception.
6 CIRRDRF 0 R Receive Data Register Full
Indicates whether CIRRDR contains a receive data
or not. This bit cannot be modified.
[Setting condition]
When a receive data is stored into CIRRDR.
[Clearing condition]
When a receive data has been read from CIRRDR.
5 REPF 0 R/W* Repeat Detection Flag
Indicates a repeat is generated.
[Setting condition]
When a repeat is detected.
[Clearing condition]
When writing 0 after reading REPF = 1.
4 OVRF 0 R/W* Overrun Error Flag
Indicates CIRRDR overflows.
[Setting condition]
When the next data is stored in CIRRDR while
CIRRDR is full.
[Clearing condition]
When writing 0 after reading OVRF = 1.