CAP1298 datasheet(43/68 Pages) MICROCHIP

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DS00001571B-page 43

CAP1298

Bit 5 - CS6_PTRN - Determines whether CS6 is considered as part of the Multiple Touch Pattern.

Bit 4 - CS5_PTRN - Determines whether CS5 is considered as part of the Multiple Touch Pattern.

Bit 3 - CS4_PTRN - Determines whether CS4 is considered as part of the Multiple Touch Pattern.

Bit 2 - CS3_PTRN - Determines whether CS3 is considered as part of the Multiple Touch Pattern.

Bit 1 - CS2_PTRN - Determines whether CS2 is considered as part of the Multiple Touch Pattern.

Bit 0 - CS1_PTRN - Determines whether CS1 is considered as part of the Multiple Touch Pattern.

5.17

Base Count Out of Limit Register

The Base Count Out of Limit Register indicates which sensor inputs have base counts out of limit (see Section 4.4, "Sen-

sor Input Calibration"). When these bits are set, the BC_OUT bit is set (see Section 5.2, "Status Registers").

For all bits in this register:

• ‘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.

5.18

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.

TABLE 5-31:

BASE COUNT OUT OF LIMIT REGISTER

Addr

R/W

B7B6B5B4B3B2B1B0

Default

2Eh

Base Count

Out of Limit

BC_

OUT_

BC_

OUT_

BC_

OUT_

BC_

OUT_

BC_

OUT_

BC_

OUT_

BC_

OUT_

BC_

OUT_

00h

TABLE 5-32:

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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