Register definitions for the TCS37727 driver. More...

Detailed Description

Register definitions for the TCS37727 driver.

Author: Johann Fischer j.fis.nosp@m.cher.nosp@m.@phyt.nosp@m.ec.d.nosp@m.e

#define	TCS37727_AG_THRESHOLD_LOW 200

#define	TCS37727_AG_THRESHOLD_HIGH (65535 - TCS37727_AG_THRESHOLD_LOW)

Register Map
Note All setting register are defined for repeated byte protocol transaction.
#define	TCS37727_ENABLE 0x80
	Enables states and interrupts.

#define	TCS37727_ATIME 0x81
	RGBC time.

#define	TCS37727_PTIME 0x82
	Proximity time.

#define	TCS37727_WTIME 0x83
	Wait time.

#define	TCS37727_AILTL 0x04
	Clear interrupt low threshold low byte.

#define	TCS37727_AILTH 0x05
	Clear interrupt low threshold high byte.

#define	TCS37727_AIHTL 0x06
	Clear interrupt high threshold low byte.

#define	TCS37727_AIHTH 0x07
	Clear interrupt high threshold high byte.

#define	TCS37727_PILTL 0x08
	Proximity interrupt low threshold low byte.

#define	TCS37727_PILTH 0x09
	Proximity interrupt low threshold high byte.

#define	TCS37727_PIHTL 0x0A
	Proximity interrupt high threshold low byte.

#define	TCS37727_PIHTH 0x0B
	Proximity interrupt high threshold high byte.

#define	TCS37727_PERS 0x8C
	Interrupt persistence filters.

#define	TCS37727_CONFIG 0x8D
	Configuration.

#define	TCS37727_PPULSE 0x8E
	Proximity pulse count.

#define	TCS37727_CONTROL 0x8F
	Gain control register.

#define	TCS37727_ID 0x92
	Device IDID.

#define	TCS37727_STATUS 0x93
	Device status.

#define	TCS37727_CDATA 0x14
	Clear ADC data low byte.

#define	TCS37727_CDATAH 0x15
	Clear ADC data high byte.

#define	TCS37727_RDATA 0x16
	Red ADC data low byte.

#define	TCS37727_RDATAH 0x17
	Red ADC data high byte.

#define	TCS37727_GDATA 0x18
	Green ADC data low byte.

#define	TCS37727_GDATAH 0x19
	Green ADC data high byte.

#define	TCS37727_BDATA 0x1A
	Blue ADC data low byte.

#define	TCS37727_BDATAH 0x1B
	Blue ADC data high byte.

#define	TCS37727_PDATA 0x1C
	Proximity ADC data low byte.

#define	TCS37727_PDATAH 0x1D
	Proximity ADC data high byte.

Command Register
#define	TCS37727_BYTE_TRANS 0x80
	Repeated byte protocol transaction.

#define	TCS37727_INC_TRANS 0xA0
	Auto-increment protocol transaction.

#define	TCS37727_SF_PICLR 0xE5
	Proximity interrupt clear.

#define	TCS37727_SF_CICLR 0xE6
	Clear channel interrupt clear.

#define	TCS37727_SF_PCICLR 0xE7
	Proximity and Clear channel interrupt clear.

Enable Register
#define	TCS37727_ENABLE_PIEN (1 << 5)
	Proximity interrupt enable.

#define	TCS37727_ENABLE_AIEN (1 << 4)
	Clear channel interrupt enable.

#define	TCS37727_ENABLE_WEN (1 << 3)
	Wait enable, activates the wait feature.

#define	TCS37727_ENABLE_PEN (1 << 2)
	Proximity enable, activates the proximity function.

#define	TCS37727_ENABLE_AEN (1 << 1)
	RGBC enable, actives the two-channel ADC.

#define	TCS37727_ENABLE_PON (1 << 0)
	Power ON.

Control Register
#define	TCS37727_CONTROL_PDRIVE_100 0x00
	100 mA LED Drive Strength

#define	TCS37727_CONTROL_PDRIVE_50 0x04
	50 mA LED Drive Strength

#define	TCS37727_CONTROL_PDRIVE_25 0x08
	25 mA LED Drive Strength

#define	TCS37727_CONTROL_PDRIVE_12 0x0C
	12.5 mA LED Drive Strength

#define	TCS37727_CONTROL_PDRIVE_MASK 0x0C
	PDRIVE Mask.

#define	TCS37727_CONTROL_AGAIN_1 0x00
	1x gain RGBC Gain Value

#define	TCS37727_CONTROL_AGAIN_4 0x01
	4x gain RGBC Gain Value

#define	TCS37727_CONTROL_AGAIN_16 0x02
	16x gain RGBC Gain Value

#define	TCS37727_CONTROL_AGAIN_60 0x03
	60x gain RGBC Gain Value

#define	TCS37727_CONTROL_AGAIN_MASK 0x03
	AGAIN Mask.

Device ID
#define	TCS37727_ID_VALUE 0x49

Predefined ATIME register values.
#define	TCS37727_ATIME_MIN 2400 /* 2.4ms integration time, max count 1024 */

#define	TCS37727_ATIME_MAX 614000 /* 614ms integration time, max count 0xffff */

#define	TCS37727_ATIME_TO_REG(val) (256 - (uint8_t)((val) / 2400))

#define	TCS37727_ATIME_TO_US(reg) ((256 - (uint8_t)(reg)) * 2400)

Coefficients for Lux and CT Equations (DN40)
Note Coefficients in integer format, multiplied by 1000.
#define	DGF_IF 310

#define	R_COEF_IF 136

#define	G_COEF_IF 1000

#define	B_COEF_IF -444

#define	CT_COEF_IF 3810

#define	CT_OFFSET_IF 1391

Detailed Description

Register Map

Command Register

Enable Register

Control Register

Device ID

Predefined ATIME register values.

Coefficients for Lux and CT Equations (DN40)