Epson S1C17624 Technical Manual page 285

D2 SSenB: Sensor B Oscillation Control/Status 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 (default)
Sensor B cannot be used in AC oscillation mode for resistive sensors and DC oscillation mode for ca-
pacitive sensors.
D1 SSena: Sensor a Oscillation Control/Status 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 (default)
D0 SReF: Reference Oscillation Control/Status Bit
Controls CR oscillation for the reference element. This bit also indicates the CR oscillation status.
1 (W): Start oscillation
0 (W): Stop oscillation
1 (R): Being oscillated
0 (R): Stopped (default)
notes: • SREF, SSENA, and SSENB are all ineffective when RFCEN/RFC_CTL register is 0 (converting
operation disabled).
• Writing 1 to SSENB does not start oscillation when SMODE[1:0]/RFC_CTL register is 0x1 (AC
oscillation mode for resistive sensors) or 0x2 (DC oscillation mode for capacitive sensors).
• When writing 1 to SREF, SSENA, or SSENB to start oscillation, be sure to avoid that more
than one bit are set to 1.
• Be sure to reset the interrupt flags in the RFC_IFLG register (EREFIF, ESENAIF, ESENBIF,
OVMCIF, and OVTCIF) before starting oscillation using SREF, SSENA, and SSENB.
RFC Measurement Counter low and high Registers (RFC_MCl, RFC_MCh)
Register name address Bit
RFC 0x53a4 D15–0 MC[15:0]
Measurement (16 bits)
Counter low
Register
(RFC_MCl)
RFC 0x53a6 D15–8 –
Measurement
(16 bits) D7–0 MC[23:16]
Counter high
Register
(RFC_MCh)
D[7:0]/RFC_MCh, D[15:0]/RFC_MCl
MC[23:0]: Measurement Counter Bits
Measurement counter data can be read and written to. (Default: 0x0)
note: The measurement counter must be set from the low-order value (MC[15:0]/RFC_MCL register)
first. The counter may not be set to the correct value if the high-order value (MC[23:16]/RFC_
MCH register) is written first.
S1C17624/604/622/602/621 TeChniCal Manual
name Function
Measurement counter low-order
16-bit data
reserved
Measurement counter high-order
8-bit data
Seiko epson Corporation
25 R/F COnVeRTeR (RFC)
Setting init. R/W
0x0–0xffff 0x0 R/W
– – –
0x0–0xff 0x0 R/W
Remarks
0 when being read.
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