TMD2671
DIGITAL PROXIMITY DETECTOR
TAOS144B ? SEPTEMBER 2012
Register Set
The device is controlled and monitored by data registers and a command register accessed through the serial
interface. These registers provide for a variety of control functions and can be read to determine results of the
ADC conversions. The register set is summarized in Table 1.
Table 1. Register Address
ADDRESS
??
0x00
0x01
0x02
0x03
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x12
0x13
0x18
0x19
RESISTER NAME
COMMAND
ENABLE
ATIME
PTIME
WTIME
PILTL
PILTH
PIHTL
PIHTH
PERS
CONFIG
PPULSE
CONTROL
ID
STATUS
PDATAL
PDATAH
R/W
W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
REGISTER FUNCTION
Specifies register address
Enables states and interrupts
ALS ADC time
Proximity ADC time
Wait time
Proximity interrupt low threshold low byte
Proximity interrupt low threshold high byte
Proximity interrupt high threshold low byte
Proximity interrupt high threshold high byte
Interrupt persistence filter
Configuration
Proximity pulse count
Control register
Device ID
Device status
Proximity ADC low data register
Proximity ADC high data register
RESET VALUE
0x00
0x00
0x00 1
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
ID
0x00
0x00
0x00
NOTE 1: Following power on, this register should be initialized to 0xFF.
The mechanics of accessing a specific register depends on the specific protocol used. See the section on I 2 C
protocols on the previous pages. In general, the COMMAND register is written first to specify the specific
control/status register for following read/write operations.
The LUMENOLOGY r Company
r
www.taosinc.com
r
Copyright E 2012, TAOS Inc.
15
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