Applied Data Systems Bitsy Plus User Manual page 8

Bitsy Plus User's Manual
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
4 Feature Reference............................................................................................................................17
4.1 System Architecture.............................................................................................................17
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.2 Real-Time Clock (RTC) ......................................................................................................19
4.3 ADSmartIO..........................................................................................................................19
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.4 Audio ...................................................................................................................................23
4.4.1
4.4.2
4.5 Data Communications .........................................................................................................25
4.5.1
4.5.2
4.5.3
4.5.4
4.6 Displays ...............................................................................................................................28
4.6.1
Page vi
J4: Manufacturing Test Connector............................................................................13
J5: JTAG Connector .................................................................................................13
J6: Input Power Connector .......................................................................................13
J9: External CompactFlash / Expansion Bus ............................................................14
J10: ADSmartIO, USB, Serial 1, Stereo Audio, I/Os ...............................................15
Boot Code ..................................................................................................................17
Synchronous DRAM .................................................................................................17
Non-Volatile Memory ...............................................................................................17
Flash Memory.....................................................................................................17
ADSmartIO EEPROM ........................................................................................17
CompactFlash and PCMCIA/ATA Cards ...........................................................17
RTC NVRAM ......................................................................................................18
Interrupts....................................................................................................................18
CompactFlash / Expansion Bus .................................................................................18
SA-1110 GPIO Cross-Reference ...............................................................................18
Overview ...................................................................................................................19
ADSmartIO Features .................................................................................................20
Digital I/Os ................................................................................................................20
Analog Inputs (A/D) ..................................................................................................20
Temperature Sensing .................................................................................................20
Keypad Scan ..............................................................................................................20
ADSmartIO Signal Cross-Reference .........................................................................22
Microphone Pre-amps................................................................................................23
Audio Outputs: Speakers and Headphones................................................................23
Connecting Speakers ..........................................................................................23
Connecting Headphones.....................................................................................23
Using Stereo Headphones and Speakers in the Same System.............................25
Serial Ports.................................................................................................................25
USB ...........................................................................................................................25
USB Host ............................................................................................................26
USB Client ..........................................................................................................26
SPI Bus ......................................................................................................................26
Overview.............................................................................................................26
SPI on the Bitsy Plus ..........................................................................................27
Alternate uses of the SPI Port.............................................................................27
2
I C Bus Master and SMBus .......................................................................................27
Overview.............................................................................................................27
2
I C on the Bitsy Plus...........................................................................................27
SMBus.................................................................................................................28
Display Types Supported...........................................................................................28
ADS document # 110114-1001A