20-11
Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
RFC Ch.
n
Oscillation Trigger Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
RFC_
n
TRG
15
–
8
–
0x00
–
R
–
7
–
3
–
0x00
–
R
2
SSENB
0
H0
R/W
1
SSENA
0
H0
R/W
0
SREF
0
H0
R/W
Bits 15
–
3 Reserved
Bit 2
SSENB
This bit controls CR oscillation for sensor B. This bit also indicates the CR oscillation status.
1 (W):
Start oscillation
0 (W):
Stop oscillation
1 (R):
Being oscillated
0 (R):
Stopped
Note:
Writing 1 to the RFC_
n
TRG.SSENB bit does not start oscillation when the RFC_
n
CTL.
Bit 1
SSENA
This bit controls CR oscillation for sensor A. This bit also indicates the CR oscillation status.
1 (W):
Start oscillation
0 (W):
Stop oscillation
1 (R):
Being oscillated
0 (R):
Stopped
Bit 0
SREF
This bit controls CR oscillation for the reference resistor. This bit also indicates the CR
oscillation status.
1 (W):
Start oscillation
0 (W):
Stop oscillation
1 (R):
Being oscillated
0 (R):
Stopped
Notes:
•
Settings in this register are all ineffective when the RFC_
n
CTL.MODEN bit = 0 (RFC operation
disabled).
•
When writing 1 to the RFC_
n
TRG.SREF bit, the RFC_
n
TRG.SSENA bit, or the RFC_
n
TRG.
SSENB bit to start oscillation, be sure to avoid having more than one bit set to 1.
•
Be sure to clear the interrupt flags (RFC_
n
INTF.EREFIF bit, RFC_
n
INTF.ESENAIF bit,
RFC_
n
INTF.ESENBIF bit, RFC_
n
INTF.OVMCIF bit, and RFC_
n
INTF.OVTCIF bit) before starting
oscillation using this register.
Summary of Contents for S1C31D50
Page 461: ...25 1 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 25 Package TQFP12 48PIN ...
Page 462: ...25 2 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP13 64PIN ...
Page 463: ...25 3 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 TQFP14 80PIN ...
Page 464: ...25 4 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP15 100PIN ...