E909-05 Datasheet, PDF (45/67 Pages) ELMOS Semiconductor AG – The HALIOS® multi purpose optical sensor is based on an optical bridge which provides a contactless detec-tion of gestures (e.g. movement of a finger).

HALIOS® MULTI-PURPOSE OPTICAL SENSOR WITH HIGH LIGHT IMMUNITY
E909.05
PRELIMINARY INFORMATION AUG 02, 2011
6.10.4 I²C Module Registers
address offset
reset value
register name
size
0x00
0x00
Receive data fifo register
8
0x02
0x00
Send data fifo register
8
0x04
0x0040
Control register
16
0x06
0x0000
Status register
16
Table 6.10.4.1: I²C Module Registers
6.10.5 Data FIFO Registers
Receive Data FIFO Registers
The data received from the master is stored in the receive fifo registers and has a depth of 4. The current fill
level can be read in the status register. If the fifo is completely filled up and another byte should be received
the interface will force the master into a wait state until the application software reads one byte from the fifo.
Register Receive Data FIFO Register (0x00)
Bit
7
6
5
4
Reset value
0
0
0
0
Internal access R
R
R
R
External access R
R
R
R
Bit Description 7:0 : receive data
(see Data FIFO Registers for details)
Table 6.10.5.1: Receive Data FIFO Register
3
0
R
R
2
0
R
R
1
0
R
R
0
0
R
R
Send Registers:
The master reads data that is stored in the send fifo registers. This fifo buffer has a depth of 4 registers. The
current fill level can be read in the status register. If the fifo is empty and a byte is requested by the master
the interface will force the master into a wait state until the application software writes one byte to the fifo.
Register Send Data FIFO Register (0x02)
Bit
7
6
5
4
Reset value
-
-
-
-
Internal access W
W
W
W
External access W
W
W
W
Bit Description 7:0 : send data
(see Data FIFO Registers for details)
Table 6.10.5.2: Send Data FIFO Register
3
-
W
W
2
-
W
W
1
-
W
W
0
-
W
W
6.10.6 Control Register
Register Control Register (0x04)
Bit
15 14 13 12 11 10 9 8 7
Reset value
000000000
Internal access R R R/W R/W R/W R/W R/W R/W R
External access R R R/W R/W R/W R/W R/W R/W R
6543
1000
R/W R/W R/W R
R/W R/W R/W R
210
000
R/W R/W R/W
R/W R/W R/W
This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.
ELMOS Semiconductor AG
Data Sheet 45 / 67
QM-No.: 25DS0014E.00