NXP Semiconductors EVB-VF522R3 Скачать руководство пользователя страница 12 | Manualshive

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NXP Semiconductors EVB-VF522R3 Скачать руководство пользователя страница 12

EVB-VF522R3 Platform User’s Guide, Rev. 0, 11/2014

Freescale Semiconductor, Inc.

11

Clocking scheme

5

Clocking scheme

There are three on-board clock sources available–a crystal-based (Y4) 32.768 kHz MCU built-in oscillator
and two 24 MHz ones:

•

Crystal-based (Y3) MCU built-in oscillator used on the EVB by default (with R621 configured as
per

Table 15

),

•

Optional external oscillator (Y2), and

demonstrates how its 3.3V-rated output is

connected to a 1.1V-rated MCU input for applications requiring a high-quality clock source.

When Y2 is used, the Y3-based circuit (Y3, C63, C66, and R640) shall be unpopulated.

3.3V

Switch-Mode

MCU reset circuitry
External 24 MHz oscillator (optional)
Peripheral reset-control multiplexer
Mode configuration (BOOTMOD[0..1] and RCON[0..31] pull-up resistors)
Debug (JTAG and Cortex) headers
CAN transceiver
LIN transceiver
SCI transceiver
Board-to-Board MAC (Ethernet) connector
USB circuitry
QuadSPI Flash
SD connector
DCU daughtercard connector
MLB daughtercard connector
Push button preset switches
Audio DSP circuitry (directly and via 3V3_Audio)
SPI Serial Flash (optional usage)
“Aux In” audio ADC circuitry (via 3V3_Audio)
Microphones Left & Right (via 3V3_Audio)
Audio DACs (via 3V3_Audio)
Radio Tuner daughtercard connector
Generic CD connector
Bluetooth daughtercard connector
I

2

C daughtercard connector

1.5V

Switch-Mode

DDR3 SDRAM circuitry

3.3V

Linear

ADC potentiometer

1.8V

Linear

DCU daughtercard connector
Audio DSP circuitry
Headphone amplifiers (via 1V8_Audio)

Table 2. EVB peripherals power

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Содержание EVB-VF522R3

Страница 1: ...on the information therein All referenced brands product names service names and trademarks are the property of their respective owners 00000005981LF 000 EOS Power Buy Now We have 45 000 LP502030 PCM...

Страница 2: ...2 switch Advanced security 40 C to 85 C operating temperature range The EVB as a whole however is intended for bench laboratory use and has been designed using commercial temperature range specified c...

Страница 3: ...r rails Inherent Enable for the major power rails Power on manual and JTAG reset with status LED Configurable reset multiplexer controlled over SPI I2 C providing reset control of the major peripheral...

Страница 4: ...onnectors Radio tuner daughtercard connector Two I2 C daughtercard connectors Bluetooth daughtercard connector Generic CD connector NOTE To alleviate confusion between jumpers and headers all EVB jump...

Страница 5: ...3 Configuration overview The EVB has been designed with ease of use in mind its functional blocks are shown in Figure 2 and Figure 3 below Explained are the power reset clocks and debug configuration...

Страница 6: ...gement scheme 4 1 External power connector P12 The EVB requires a DC supply of 12V 2V capable of 2A which allows easy use in a vehicle as well as copying the design for automotive applications A stand...

Страница 7: ...her EVB circuitry instead of using filtered MCU supply The 1 2V and 1 8V outputs have LED status indicators 4 4 Power status LEDs DS1 to DS6 Five voltage outputs have green LED status indicators as sh...

Страница 8: ...p battery 4 6 MCU supply routing 4 6 1 MCU core power An external ballast transistor Q2 is used to generate 1 2V for the MCU core see Figure 6 depending on the R28 configuration see Table 15 its colle...

Страница 9: ...rail 2 The optional more expensive option when high quality ADC and DAC performance required from the dedicated linear voltage regulators unpopulated by default Details of using the option selection c...

Страница 10: ...suring USB PHY current Headers J4 and J7 controlling power for the MCU USB PHYs see Section 11 4 Dual USB interface P1 P9 may also be used to measure current if their jumpers are replaced with an amme...

Страница 11: ...VF522R3 Schematic for details 4 7 5 Powering EVB peripherals The power routing options detailed in Section 4 6 MCU supply routing only impact the voltage supply to the MCU and not any of the EVB peri...

Страница 12: ...oscillator optional Peripheral reset control multiplexer Mode configuration BOOTMOD 0 1 and RCON 0 31 pull up resistors Debug JTAG and Cortex headers CAN transceiver LIN transceiver SCI transceiver B...

Страница 13: ...Fast 24 MHz Slow 128 kHz the signal is divided by 4 by default to provide an internal 32 kHz clock to the device 6 MCU reset block The MCU reset block has the following features see Figure 11 Active l...

Страница 14: ...8 output multiplexer U8 to reset the major peripherals see Figure 12 Its outputs are of a push pull type except for the unused open drain Output 0 When reset all the outputs are in the high impedance...

Страница 15: ...Table 15 By default boot configuration will be read from the internal fuses 8 2 RCON configuration SW8 to SW11 In addition there are 32 switches four 8 way miniature slide switches as per Figure 13 wh...

Страница 16: ...ex 10 pin P16 Figure 14 Debug headers Table 3 RCON switches Switch RCON Bits SW11 8 1 RCON 31 24 SW10 8 1 RCON 23 16 SW9 8 1 RCON 15 8 SW8 8 1 RCON 7 0 Table 4 Standard debug header P15 Signal Functio...

Страница 17: ...or Q2 A simple resistor divider is good enough to generate the 0 75V DDR3 reference see Figure 15 Figure 15 DDR3 0 75V reference supply The EVB is laid out so that it needs no external termination res...

Страница 18: ...l Boot ROM NOTE The QuadSPI memory reset input is connected to output 4 of the peripheral reset control multiplexer see Section 7 Peripheral reset control multiplexer When reset its outputs are in the...

Страница 19: ...IN interface J16 J17 P21 P25 P26 The Vybrid SCI0 channel is shared on the EVB by the two serial interfaces SCI and LIN selection being provided by jumpers J16 and J17 see Table 15 11 2 1 SCI configura...

Страница 20: ...and used on most other Freescale EVBs supporting LIN Powered either from LIN line or from local 12V via the 2 pin header P21 as per Table 15 Figure 18 LIN physical interface Figure 19 LIN Molex connec...

Страница 21: ...talled Vybrid MCU device features two USB OTG ports with on chip HS FS LS PHYs they are connected to the below EVB ports with 0 5A power support each USB0 On The Go Micro AB connector P9 USB1 Type A H...

Страница 22: ...he Video Input 0 example in Figure 22 the impedance matching circuit can be also used signal attenuation if zero resistance of the short footprint is replaced with a non zero value and the R512 value...

Страница 23: ...reen interface are shared on the connector P20 with the I2 C lines see Table 15 12 2 5 Auxiliary signals P20 featured the following auxiliary signals Reset pull down and optional pull up resistors pro...

Страница 24: ...U506 through a filter to the headphone amplifier U501 U500 and finally to the output jack P7 P8 respectively Figure 24 Audio output block 13 4 DSP block J2 J3 P10 The DSP block on the EVB Is based on...

Страница 25: ...he MCU Refer to the DSP documentation for details about its operation programming and configuring 14 User I O and control There are various modules available separately switches LEDs connectors and he...

Страница 26: ...buttons 14 3 1 Incremental encoders SW1 SW2 There are two incremental rotary encoders on the EVB 24 clicks 12 pulses per rotation with center push switch These are intended to be used for radio develo...

Страница 27: ...ere are no hardware configuration options on the EVB in relation to the MLB card Figure 25 MLB daughtercard NOTE The daughtercard Reset input is connected to output 3 of the Peripheral Reset Control M...

Страница 28: ...mpedance state but thanks to a pull down resistor on the reset line the daughtercard is reset until the line is actively driven by the MCU via the Peripheral Reset Control Multiplexer CAUTION Ensure t...

Страница 29: ...1 inch pitch header P19 enables connection of a custom made 5V powered daughtercard supporting various applications and matching the connector type and pinout see Table 11 CAUTION Ensure that the EVB...

Страница 30: ...Control Multiplexer CAUTION Ensure that the EVB is powered OFF prior to fitting or removal of the daughtercard 14 8 Bluetooth daughtercard header J5 The EVB includes a 0 1 inch pitch 30 pin header see...

Страница 31: ...ge Table 14 provides a useful cross reference to see what MCU port pins are used and shared by the various EVB peripherals and functions Signal Pin No Pin No Signal 25 26 GND 27 28 3 3V GND 29 30 GND...

Страница 32: ...x Unused DQS on P14 unused digital GPIOs QuadSPI1 Flash C FTM0 0 5 QSPI1_A_x RCON 30 31 FTM0CH 1 2 unused FTM0CH5 DQS on P14 unused digital GPIOs SD SDHC1_x Optionally USB1 OTG Type AB RCA Video In VA...

Страница 33: ...PI0_PCS1 AUDIO_MCLK Audio DACs DSP Microphones Left Right SAI1_RX_ BCLK SYNC DATA RCON 25 26 28 DSP Various Various EASI Tuner audio ADC AUDIO_MCLK audio DACs and ADC SAI1_TX_BCLK RCON24 DACs for Audi...

Страница 34: ...MCU VBAT power source 1 2 1 From main MCU 3 3V rail 2 3 3 From backup battery Removed Unpowered J9 Main 3 3V power for MCU Fitted Provided Removed Not recommended J14 J15 MCU Boot Mode J15 MOD 1 J14 M...

Страница 35: ...e ballast transistor collector voltage A 1 5V B 3 3V R79 LIN interface mode of operation Populated Master Removed Slave R621 MCU 24 MHz clock source A MCU crystal oscillator B From external oscillator...

Страница 36: ...e 18 Reference documents More information on the Vybrid family and EVB System is provided in the documents below which can be found in the documentation sections of freescale com Vybrid and freescale...

Страница 37: ...R3 Platform User s Guide Rev 0 11 2014 36 Freescale Semiconductor Inc Revision history DOC 01898 Ethernet Board to Board Connector Assignment 19 Revision history Revision Date Comment 0 11 2014 Initia...

Страница 38: ...may be provided in Freescale data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including typicals must be...

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