Holtek HT32F52342 User Manual page 31

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52342/HT32F52352
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External Bus Interface – EBI
● Programmable interface for various memory types
● Translate the AHB transactions into the appropriate external device protocol
● Individual chip select signal for per memory bank
● Programmable timing to support a wide range of devices
● Automatic translation when AHB transaction width and external memory interface width is
different
● Write buffer to decrease the stalling of the AHB write burst transaction
● Support multiplexed and non-multiplexed address and data line configurations
● Multiplexed address and data line configurations
● Up to 21 address lines
● Up to 16-bit data bus width
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Universal Serial Bus Device Controller – USB
● Complies with USB 2.0 full-speed (12Mbps) specification
● On-chip USB full-speed transceiver
● 1 control endpoint (EP0) for control transfer
● 3 single-buffered endpoints for bulk and interrupt transfer
● 4 double-buffered endpoints for bulk, interrupt and isochronous transfer
● 1KB EP-SRAM used as the endpoint data buffers
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Debug Support
● Serial Wire Debug Port – SW-DP
● 4 comparators for hardware breakpoint or code / literal patch
● 2 comparators for hardware watchpoints
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Package and Operation Temperature
● 33-pin QFN, 48/64-pin LQFP package
● Operation temperature range: -40 ˚C to +85 ˚C
Rev. 1.30 31 of 656 September 28, 2018