mpc5645s Freescale Semiconductor, Inc, mpc5645s Datasheet - Page 17

• Manufacturer Part Number: mpc5645s
• Description: Mpc5645s Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

1.3.21
The ADC features the following:
1.3.22
The DSPI modules provide a synchronous serial interface for communication between the MCU and external devices.
The DSPI features:
Freescale Semiconductor
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10-bit A/D resolution
0–5 V or 0–3.3 V common mode conversion range
Supports conversions speeds of up to 1s
20 internal and 8 external channels support
Up to 20 single-ended inputs channels
— 10 channels configured as input only pins
— 10 channels configured to have alternate function as general purpose input/output pins
External multiplexer support to increase up to 27 channels
— Automatic 1 × 8 multiplexer control
— External multiplexer connected to a dedicated input channel
— Shared register between the 8 external channels
Result register available for every non-multiplexed channel
Configurable Left or Right aligned result format
Supports for one-shot, scan, and injection conversion modes
Injection mode status bit implemented on adjacent 16-bit register for each result
— Supports Access to Result and injection status with single 32-bit read
Independently enabling of function for channels:
— Pre-sampling
— Offset error cancellation
— Offset Refresh
Conversion Triggering support
— Internal conversion triggering from periodic interrupt timer (PIT)
Four configurable analog comparator channels offering range comparison with triggered alarm
— Greater than
— Less than
— Out of range
All unused analog pins available as general purpose input pins
Selected unused analog pins available as general purpose pins
Power Down mode
Optional support for DMA transfer of results
Full duplex, synchronous transfers
Master or slave operation
Programmable master bit rates
Programmable clock polarity and phase
End-of-transmission interrupt flag
Programmable transfer baud rate
– 10-bit ± 2 counts accuracy (TUE)
– 10-bit ± 3 counts accuracy (TUE)
Analog-to-Digital Converter (ADC)
Deserial Serial Peripheral Interface (DSPI)
MPC5645S Microcontroller Data Sheet, Rev. 6
Overview
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