CAP1208_15 datasheet(40/64 Pages) MICROCHIP

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CAP1208

DS00001570C-page 40

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• ‘0’ - The base count for the specified sensor input is in the operating range.

• ‘1’ - The base count of the specified sensor input is not in the operating range.

Bit 7 - BC_OUT_8 - Indicates whether CS8 has a base count out of limit.

Bit 6 - BC_OUT_7 - Indicates whether CS7 has a base count out of limit.

Bit 5 - BC_OUT_6 - Indicates whether CS6 has a base count out of limit.

Bit 4 - BC_OUT_5 - Indicates whether CS6 has a base count out of limit.

Bit 3 - BC_OUT_4 - Indicates whether CS6 has a base count out of limit.

Bit 2 - BC_OUT_3 - Indicates whether CS3 has a base count out of limit.

Bit 1 - BC_OUT_2 - Indicates whether CS2 has a base count out of limit.

Bit 0 - BC_OUT_1 - Indicates whether CS1 has a base count out of limit.

5.17

Recalibration Configuration Register

The Recalibration Configuration register controls some recalibration routine settings (see Section 4.4, "Sensor Input

Calibration") as well as advanced controls to program the Sensor Input Threshold register settings.

Bit 7 - BUT_LD_TH - Enables setting all Sensor Input Threshold registers by writing to the Sensor Input 1 Threshold

• ‘0’ - Each Sensor Input X Threshold register is updated individually.

• ‘1’ (default) - Writing the Sensor Input 1 Threshold register will automatically overwrite the Sensor Input Threshold

registers for all sensor inputs (Sensor Input Threshold 1 through Sensor Input Threshold 8). The individual Sensor

Input X Threshold registers (Sensor Input 2 Threshold through Sensor Input 8 Threshold) can be individually

updated at any time.

Bit 6 - NO_CLR_INTD - Controls whether the accumulation of intermediate data is cleared if the noise status bit is set.

• ‘0’ (default) - The accumulation of intermediate data is cleared if the noise status bit is set.

• ‘1’ - The accumulation of intermediate data is not cleared if the noise status bit is set.

APPLICATION NOTE:

Bits 5 and 6 should both be set to the same value. Either both should be set to ‘0’ or both

should be set to ‘1’.

Bit 5 - NO_CLR_NEG - Controls whether the consecutive negative delta counts counter is cleared if the noise status bit

is set.

‘0’ (default) - The consecutive negative delta counts counter is cleared if the noise status bit is set.

‘1’ - The consecutive negative delta counts counter is not cleared if the noise status bit is set.

Bits 4 - 3 - NEG_DELTA_CNT[1:0] - Determines the number of negative delta counts necessary to trigger a digital reca-

libration (see Section 4.4.2, "Negative Delta Count Recalibration"), as shown in Table 5-30.

TABLE 5-29:

RECALIBRATION CONFIGURATION REGISTERS

Addr

R/W

Default

2Fh

R/W

Recalibration

Configuration

BUT_

LD_TH

NO_CLR

_INTD

NO_CLR

_NEG

NEG_DELTA_

CNT[1:0]

CAL_CFG[2:0]

8Ah

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