E909.05A61DC ELMOS Semiconductor, E909.05A61DC Datasheet - Page 18

• Manufacturer Part Number: E909.05A61DC
• Description: Processors - Application Specialized Halios multipurpose sensor IC
• Manufacturer: ELMOS Semiconductor

Specifications of E909.05A61DC

• Rohs: yes
• Processor Series: EL16
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 8 MHz
• Data Ram Size: 3 kB
• Operating Supply Voltage: 2.25 V to 2.75 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Interface Type: I2C, SPI
• Memory Type: Flash, SRAM
• Minimum Operating Temperature: - 40 C
• Number Of Timers: 2

PRELIMINARY INFORMATION AUG 02, 2011
Figure 5.6.1-1 Block Diagram
The ASIC contains a configurable HALIOS interface. It is possible to drive up to four sending LEDs and one
compensation LED. The HALIOS measurement loop is closed by a 10 bit DAC which regulates the output
current for the sending/compensation LED. The DAC is controlled by a counter that sets the DAC dependent
on the received signal amplitudes up or down. To follow fast signal changes the counter can be increased or
decreased by 1, 2, 4 or 8 steps, this is called the step size that is set due to the number of up/down-counts in
the same direction. To start a new measurement the interface is configured with the counter-value and the
step size (generally the values from the last measurement), the LED configuration and the current configura-
tion for the LED driver. The measurement regulates the DAC and performs 25 counter steps to follow the
actual reflection conditions of the sensor. After one measurement the interface returns the counter-value, the
mean-value (it is calculated from the last 16 counter-steps during one measurement) and the step size from
the last integrator cycle. After the automated measurement cycle is finished an interrupt appears if the inter-
rupt is enabled. The interrupt is used to wake the system from standby mode..
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
5.6 HALIOS Interface
5.6.1 Block Diagram
5.6.2 Features
5.6.3 HALIOS Module Registers
LEDC
LED1
LED2
LED3
LED4
address offset
HALIOS® MULTI-PURPOSE OPTICAL SENSOR WITH HIGH LIGHT IMMUNITY
CA
AN
0x00
0x02
0x04
0x06
reset value
0x0000
0x0000
0x0000
0x0000
M
U
X
HP
analog
current
control
Start Value Counter
Measurement Configuration
Current Configuration phase A
Current Configuration phase B
Data Sheet 18 / 67
demod.
DAC
DAC
DAC
DAC
DAC
DAC
register name
offset ledc
10
12
2
1
1
5
5
5
5
5
config
range
range
offset
offset
counter
register
digital
clocks
10 bit
QM-No.: 25DS0014E.00
E909.05
adr
din
dout
clk
rst
size
16
16
16
16