Epson S1C17624 - RFC Interrupt Flag Register (RFC_IFLG)

25 R/F CONVERTER (RFC)
S1C17624/604/622/602/621 TECHNICAL MANUAL Seiko Epson Corporation
25-13
RFC Interrupt Flag Register (RFC_IFLG)
Register name Address Bit Name Function Setting Init. R/W Remarks
RFC Interrupt
Flag Register
(RFC_IFLG)
0x53ae
(16 bits)
D15–5
–
reserved – – – 0 when being read.
D4
OVTCIF
TC overflow error interrupt flag 1 Cause of
interrupt
occurred
0 Cause of
interrupt not
occurred
0 R/W Reset by writing 1.
D3
OVMCIF
MC overflow error interrupt flag 0 R/W
D2
ESENBIF
Sensor B oscillation completion
interrupt flag
0 R/W
D1
ESENAIF
Sensor A oscillation completion
interrupt flag
0 R/W
D0
EREFIF
Reference oscillation completion
interrupt flag
0 R/W
D[15:5] Reserved
D4 OVTCIF: TC Overflow Error Interrupt Flag Bit
Indicates the time base counter
overflow error interrupt cause occurrence status.
1 (R): Cause of interrupt has occurred
0 (R): No cause of interrupt has occurred (default)
1 (W): Flag is reset
0 (W): Ignored
OVTCIF is set to 1 when a reference oscillation is terminated abnormally due to time base counter
overflow. OVTCIF is reset to 0 by writing 1.
D3 OVMCIF: MC Overflow Error Interrupt Flag Bit
Indicates the measurement counter overflow error interrupt cause occurrence sta
tus.
1 (R): Cause of interrupt has occurred
0 (R): No cause of interrupt has occurred (default)
1 (W): Flag is reset
0 (W): Ignored
OVMCIF is set to 1 when a sensor oscillation is terminated abnormally due to measurement counter
overflow. OVMCIF is reset to 0 by writing 1.
D2 ESENBIF: Sensor B Oscillation Completion Interrupt Flag Bit
Indicates the sensor B oscillation completion interrupt cause occurrence status.
1 (R): Cause of interrupt has occurred
0 (R)
: No cause of interrupt has occurred (default)
1 (W): Flag is reset
0 (W): Ignored
ESENBIF is set to 1 when the time base counter reaches 0x0 and a sensor B oscillation is completed
normally. ESENBIF is reset to 0 by writing 1.
D1 ESENAIF: Sensor A Oscillation Completion Interrupt Flag Bit
Indicates the sensor A oscillation completion interrupt cause occurrence status.
1 (R): Cause of interrupt has occurred
0 (R): No cause of interrupt has occurred (default)
1 (W): Flag is reset
0 (W): Ignored
ESENAIF is set to 1 when the time base counter reaches 0x0 and a sensor A oscillation is completed
normally. ESENAIF is reset to 0 by writing 1.
D0 EREFIF: Reference Oscillation Completion Interrupt Flag Bit
Indicates the reference oscillation completion interrupt cause occurrence status.
1 (R): Cause of interrupt has occurred
0 (R): No cause of interrupt has occurred (default)
1 (W): Flag is reset
0 (W): Ignored
EREFIF i
s set to 1 when the measurement counter overflows and a reference oscillation is completed
normally. EREFIF is reset to 0 by writing 1.