DSP56364D Motorola Inc, DSP56364D Datasheet - Page 15
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DSP56364D
Manufacturer Part Number
DSP56364D
Description
24-Bit Audio Digital Signal Processor
Manufacturer
Motorola Inc
Datasheet
1.DSP56364D.pdf
(162 pages)
- Current page: 15 of 162
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1.8
MOTOROLA
Signal
HCKR
Name
HCKT
PC2
PC5
FSR
PC1
ENHANCED SERIAL AUDIO INTERFACE
Input or output
Input or output
Input or output
Input, output,
disconnected
Input, output,
disconnected
Input, output,
disconnected
Signal Type
or
or
or
Table 1-10 Enhanced Serial Audio Interface Signals
Freescale Semiconductor, Inc.
State during
disconnected
disconnected
disconnected
disconnected
disconnected
disconnected
For More Information On This Product,
Reset
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
DSP56364 Advance Information
Go to: www.freescale.com
High Frequency Clock for Receiver—When programmed as an
input, this signal provides a high frequency clock source for the
ESAI receiver as an alternate to the DSP core clock. When pro-
grammed as an output, this signal can serve as a high-frequency
sample clock (e.g., for external digital to analog converters [DACs])
or as an additional system clock.
Port C 2—When the ESAI is configured as GPIO, this signal is indi-
vidually programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
High Frequency Clock for Transmitter—When programmed as
an input, this signal provides a high frequency clock source for the
ESAI transmitter as an alternate to the DSP core clock. When pro-
grammed as an output, this signal can serve as a high frequency
sample clock (e.g., for external DACs) or as an additional system
clock.
Port C 5—When the ESAI is configured as GPIO, this signal is indi-
vidually programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
Frame Sync for Receiver—This is the receiver frame sync
input/output signal. In the asynchronous mode (SYN=0), the FSR
pin operates as the frame sync input or output used by all the
enabled receivers. In the synchronous mode (SYN=1), it operates
as either the serial flag 1 pin (TEBE=0), or as the transmitter exter-
nal buffer enable control (TEBE=1, RFSD=1).
When this pin is configured as serial flag pin, its direction is deter-
mined by the RFSD bit in the RCCR register. When configured as
the output flag OF1, this pin will reflect the value of the OF1 bit in
the SAICR register, and the data in the OF1 bit will show up at the
pin synchronized to the frame sync in normal mode or the slot in
network mode. When configured as the input flag IF1, the data
value at the pin will be stored in the IF1 bit in the SAISR register,
synchronized by the frame sync in normal mode or the slot in net-
work mode.
Port C 1—When the ESAI is configured as GPIO, this signal is indi-
vidually programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
Signal Description
Enhanced Serial Audio Interface
Signal/Connection Descriptions
1-11
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