Holtek HT32F12345 User Manual page 31

32-Bit Arm ® Cortex ® -M3 MCU
HT32F12345
● Supports byte, half-word and word data size
● Programmable CRC initial seed value
● CRC computation done in 1 AHB clock cycle for 8-bit data and 4 AHB clock cycles for 32-bit
data
● Supports PDMA to complete a CRC computation of a block of memory
▄
Peripheral Direct Memory Access – PDMA
● 12 channels with trigger source grouping
● 8/16/32-bit width data transfer
● Supports Address increment, decrement or fixed mode
● 4-level programmable channel priority
● Auto reload mode
● Supported trigger source: ADC, SPI, EBI, CRC, USART, UART, I
SDIO and software request
▄
External Bus Interface – EBI
● Programmable interface for various memory types
● Translates the AHB transactions into the appropriate external device protocol
● 4 Memory bank regions and independent chip select control for each memory bank
● Accurate control of setup, strobe, hold and turn-around timing per memory bank
● Supports page mode read
● 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
● Both multiplexed and non-multiplexed address and data line configurations
– Up to 21 address lines
– Up to 16-bit data bus width
▄
Universal Serial Bus Device Controller – USB
● Complies with USB 2.0 full-speed (12 Mbps) specification
● On-chip USB full-speed transceiver
● 1 control endpoint (EP0) for control transfer
● 3 single-buffered endpoint (EP1 ~ EP3) for bulk and interrupt transfer
● 4 double-buffered endpoint (EP4 ~ EP7) for bulk, interrupt and isochronous transfer
● 1 KB EP_SRAM used as the endpoint data buffers
▄
Secure Digital Input Output Interface – SDIO
● Supports two different data bus modes: 1-bit (default) and 4-bit
● Supports two different speed modes: Normal speed (default) and High speed
● SD clock frequency of up to 48 MHz
● SPI mode and MMC stream mode not supported
▄
Debug support
● Serial Wire Debug Port SW-DP
● 6 instruction comparator and 2 literal comparator for hardware breakpoint/watchpoint or code
patch
● 1-bit asynchronous trace (TRACESWO)
▄
Package and Operation Temperature
● 46-pin QFN, 48/64-pin LQFP package
● Operation temperature range: -40 ºC to 85 ºC
Rev. 1.10 31 of 590
C, I S, GPTM, MCTM,
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November 28, 2018