GD32H757ZMT7 datasheet(79/151 Pages) GIGADEVICE

79 / 151 page

GD32H757xx Datasheet

The external memory controller EXMC, is used as a translator for CPU to access a variety of

external memory, it automatically converts AXI memory access protocol into a specific

memory access protocol defined in the configuration register, such as SRAM, ROM, NOR

Flash, PSRAM, NAND Flash and SDRAM. The EXMC also can be configured to interface

with the most common LCD module of Motorola 6800 and Intel 8080 series and reduce the

system cost and complexity.

3.36.

VREF



Stable voltage, and product calibrated.



Connects to VREFP pin to source off-chip circuits.



1.5V, 1.8V, 2.048V or 2.5V configurable reference voltage output.

A precision internal reference circuit is inside. The internal voltage reference unit is used to

provide voltage reference for ADC / DAC, or used by off-chip circuit connecting to VREFP pin.

3.37.

Low power digital temperature sensor (LPDTS)



The trigger source of measurement can be set to software or hardware.



Programmable sampling time.



Temperature window watchdog.



The interrupt can be generated when the temperature is below a low threshold or above

a high threshold and at the end of measurement.



The generation of asynchronous wakeup signal in LXTAL mode indicates that the

measurement result is higher or lower than the specified threshold.

Low power digital tempearature sensor(LPDTS) is used to transmit square wave, which is

converted by temperature and the frequency is proportional to the absolute temperature. The

frequency measurement is based on the PCLK or the LXTAL clock.

3.38.

Encoder Divided-Output controller (EDOUT)



Support for changing the activation polarity of B.



Support configuration of Z-phase output location and pulse width.



Number of edges per rotation: 16 to 65536 (must be the multiple of four).



Support for the input of update period event signals from the TRIGSEL.

The encoder divided-output controller (EDOUT) is used to output location information

obtained from the encoder in the form of A-phase, B-phase, and Z-phase pulses.

3.39.

Controller area network (CAN)



Supports CAN protocol version 2.0A/B.

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