E7111-0-102A19-AG

EZAIRO 7111 HYBRID
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Arm Cortex−M3 processor PCM interface
Arm Cortex−M3 processor SPI interface
Arm Cortex−M3 processor I
2
C interface
Arm Cortex−M3 processor GPIOs
More details on the Ezairo 7111 external interfaces can be
found in the Ezairo 7100 Hardware Reference Manual
available in the Ezairo 7100 EDK.
The 5 DIOs are brought out of the Ezairo 7111 hybrid:
DIO21, DIO22, DIO23, DIO24 and DIO25. The associated
power domain is defined by VDDO3. VDDO3 is connected
to Vbat inside the hybrid.
The SDA and SCL pads are on the VDDO3 power
domain.
Debug Ports
The CFX’s I
2
C interfaces share the same I
2
C bus within
the Ezairo 7100 chip with two other I
2
C interfaces:
CFX Debug Port I
2
C
The CFX debug port I
2
C interface is a hardware debugger
for the Ezairo 7100 system that is always enabled regardless
of the configuration of the general−purpose I
2
C interface.
The debug port implements the debug port protocol
command set and is tightly coupled with the CFX DSP and
the memory components attached to the CFX. The default
address is 0x60.
Arm Cortex−M3 Processor Debug Port I
2
C
The Arm Cortex−M3 processor debug port I
2
C interface
is a hardware debugger for the Ezairo 7100 system that is
always enabled regardless of the configuration of the
general−purpose I
2
C interface. The debug port implements
an
Arm Cortex−M3 processor debug port protocol command
set that is tightly coupled with the Arm Cortex−M3
processor and the memory components attached to this core.
The default address is 0x40.
DEFAULT ALGORITHMS ON EZAIRO 7111
Pre Suite Firmware Bundle
The default firmware image loaded in the EEPROM of
Ezairo 7111 comprises a realtime framework and suite of
advanced sound processing algorithms ideal for high−end,
full featured hearing aids (available under NDA). For
additional details about the Pre Suite firmware bundle for
Ezairo 7111 refer to AND9667/D.
The default application leaves the debug port of Ezairo
7111 in Restricted Mode. It is possible to erase the default
application and replace it with your own firmware image
provided you first use the Jump ROM functions ”Wipe” and
”Unlock” to place the device in Unrestricted Mode. Refer to
the Communication Protocols Manual for Ezairo 7100 for
more information.
FREQUENCY RESPONSE GRAPH
Conditions
SYS_CLK = 10.24 Mhz
Firmware: Simple FIFO copy application
Gain normalized to 0 dB at 1 kHz
Measurements taken electrically with a two−pole RC
filter on the output with a cutoff frequency (−3 dB point) of
8 kHz. From 2 kHz to 8 kHz, the roll−off is due to the RC
filter.
FREQUENCY (Hz)
MAGNITUDE (dB)
−70
−60
−50
−40
−30
−20
−10
0
10
100 1000 10000 100000
8kHz
10kHz
12kHz
14kHz
16kHz
Figure 4. Frequency Response Graph
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System Identification
System identification is used to identify different system
components. This information can be retrieved using the
Promira Serial Platform from TotalPhase, Inc. Or the
Communications Accelerator Adaptor (CAA) and some
protocol software provided by ON Semiconductor (see
CAA instruction manual). For the Ezairo 7100 chip, the key
identifier components and values are as follows:
Chip Family: 0x06
Chip Version:0x01
Chip Revision: 0x0200
The hybrid ID can be found in the manufacturing area of the
EEPROM at address 0x00F1 to 0x00F2 (2 bytes => 16 bits)
Hybrid ID: 0x00B0
Solder Information
The Ezairo 7111 hybrid is constructed with all RoHS
compliant material and should therefore be reflowed
accordingly.
This hybrid device is Moisture Sensitive Class MSL4 and
must be stored and handled accordingly. Re−flow according
to IPC/JEDEC standard J−STD−020C, Joint Industry
Standard: Moisture/Re−flow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices.
For soldering guidelines, please refer to the Soldering and
Mounting Techniques Reference Manual
(SOLDERRM/D).
EZAIRO 7111 HYBRID
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Electrostatic Discharge (ESD) Device
CAUTION: ESD sensitive device. Permanent damage
may occur on devices subjected to high−energy electrostatic
discharges. Proper ESD precautions in handling, packaging
and testing are recommended to avoid performance
degradation or loss of functionality.
Development Tools
For more information on which development tools best
suit your product development, contact your local sales
representative or authorized distributor.
Company or Product Inquiries
For more information about ON Semiconductor products
or services visit our web site at http://onsemi.com.
Technical Contact Information
dsp.support@onsemi.com
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P
UBLICATION ORDERING INFORMATION
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Europe, Middle East and Africa Technical Support:
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E7111/D
Promira is a trademark of Total Phase, Inc.
Cortex and Arm are registered trademarks of Arm Limited.
Ezairo is a registered trademark of Semiconductor Components industries, LLC.
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E7111-0-102A19-AG

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Audio DSPs EZAIRO 7111 Audio DSP for Hearing Aids
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