C5535 DSPShield H/W Reference Manual
Version 0.1
In Collaboration with Stanford University
page
iii
Table of Contents
1
C5535 DSPShield ...................................................................................................... 1
1.1
Key Features ...............................................................................................................1
1.2
DSPShield Architecture..............................................................................................2
1.3
User Control Elements ...............................................................................................3
1.4
DSPShield Application Photos ...................................................................................4
2
Power Management .................................................................................................. 4
2.1
External Power Interface ............................................................................................4
2.2
Internal Voltages ........................................................................................................6
2.3
Voltage Monitoring ....................................................................................................6
2.4
C5535 DSP Core Voltage ...........................................................................................7
3
C5535 DSP and Internal Peripherals ...................................................................... 7
3.1
Parallel and Serial Peripherals ....................................................................................7
3.2
Clock Sources .............................................................................................................8
3.3
ROM Bootloader ........................................................................................................9
3.4
/INT1, /INT0, XF, WAKEUP ..................................................................................10
3.5
USB Controller .........................................................................................................10
3.6
MMC/SDx Controller ...............................................................................................10
3.7
I2C ............................................................................................................................10
4
DSPShield Peripherals............................................................................................ 11
4.1
I2C GPIO Expander .................................................................................................11
4.2
OLED Display ..........................................................................................................14
4.3
TLV320ACI3204 Audio Codec ...............................................................................14
4.4
Micro SD Card Connector ........................................................................................14
4.5
DIP Switch Inputs, LEDs and Push Button Reset ....................................................14
4.6
DSP Expansion Connector .......................................................................................15
5
Emulation................................................................................................................. 16
5.1
FTDI FT2232H .........................................................................................................16
5.2
Power via XDS-USB ................................................................................................17
6
Arduino Interface .................................................................................................... 17
6.1
Arduino/DSPShield Interface Block Diagram .........................................................19
6.1.1
Interface Logic Levels ............................................................................... 19
6.1.2
Analog Inputs ............................................................................................ 20
6.2
Arduino/DSPShield Reset Multiplexing ..................................................................20
