TCC76 Datasheet, PDF (142/259 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC76x
Specification Rev. 0.07
32-bit RISC Microprocessor for Digital Media Player
February 23, 2005
UART/IRDA
Interrupt Register (UTIR)
0x80000608
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
ERS ETX ERX 0 FRS FTX FRX 0 QRS QTX QRX
ERS [10]
0
1
Type
Interrupt Control
R/W Receiver Line Status interrupt is disabled
R/W Receiver Line Status interrupt is enabled
ETX [9]
0
1
Type
Interrupt Control
R/W Transmitter Holding Register Empty interrupt is disabled
R/W Transmitter Holding Register Empty interrupt is enabled
ERX [8]
0
1
Type
Interrupt Control
R/W Receiver Data Available interrupt is disabled
R/W Receiver Data Available interrupt is enabled
FRS [6]
0
1
Type
Receiver Line Status Flag
R Indicate that Receiver Line Status has not changed
R Indicate that Receiver Line Status has changed
FTX [5]
0
1
Type Transmitter Holding Register Empty Flag
R Interrupt has not generated
R Interrupt has generated, but not cleared
FRX [4] Type
Receiver Data Available Flag
0
R Interrupt has not generated
1
R Interrupt has generated, but not cleared
FRS, FTX, FRX is set or cleared regardless of each enable bit (ERS, ETX, ERX)
settings. It can be used to follow polling method instead of interrupt method.
QRS [2]
0
1
Type
R
R
Interrupt Flag
Indicate that Receiver Line Status interrupt has not
generated
Indicate that Receiver Line Status interrupt has generated
QTX [1]
0
1
Type
R
R
Interrupt Flag
Transmitter Holding Register Empty interrupt has not
generated
Transmitter Holding Register Empty interrupt has
generated
QRX [0] Type
Interrupt Flag
0
R Indicate that Receiver Data Available interrupt has not
generated
1
R Indicate that Receiver Data Available interrupt has generated
QRS, QTX, QRX is only set when each enable bit is set to 1. This flags is used to
distinguish which interrupt has generated the UART flag of IREQ and MREQ register in
interrupt controller.
Preliminary
10-4