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W7500x Reference Manual Version1.1.0
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After remapping
Software reset (SYSRESETREQ bit in Cortex-M0. Refer to the Cortex-M0 technical
reference manual for more detail)
•
Power reset sets all registers to their reset values.
•
System reset sets all registers to their reset values except the CRG block registers and
remap register to protect remap value
Clock
Two clock sources can be used to drive the system clock.
External oscillator clock (8MHz ~ 24MHz) (OCLK)
Internal 8MHz RC oscillator clock (RCLK)
One additional clock source
32.768KHz low speed external crystal which derives the real time clock.
There is a PLL
One PLL is integrated
Input clock range is from 8MHz to 24MHz
Frequency can be generated by M/N/OD registers. (refer register description)
Bypass option enabled
There are many generated clocks for independent operating with system clock
System clock (FCLK)
ADC clock (ADCCLK)
SSP0, SSP1 clock (SSPCLK)
UART0, UART1 clock (UARTCLK)
Two Timer clocks (TIMCLK0, TIMCLK1)
8ea PWM clocks (PWMCLK0 - PWMCLK7)
Real time clock (RTCCLK)
WDOG clock (WDOGCLK)
Random number generator clock (RNGCLK)
RNGCLK have only one source (pll output) and no prescaler
Some of the generated clocks turn off automatically when CPU enters sleep mode.
ADCCLK, RNGCLK
Generate two Hardware TCPIP Clocks (MII_RXC, MII_TXC) are from external PADs.
Hardware TCPIP Clocks can be gated by register control.
All clocks generated from CRG can be monitored.
Содержание W7500
Страница 28: ...W7500x Reference Manual Version1 1 0 28 399 Memory map Figure 2 W7500x memory map ...
Страница 324: ...W7500x Reference Manual Version1 1 0 324 399 Figure 46 UART character frame ...
Страница 391: ...W7500x Reference Manual Version1 1 0 391 399 1 SSP1 must not drive the SSPTXD output in slave mode ...