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NXP Semiconductors

MC56F80000-EVKUM

MC56F80000-EVK Board User Manual

2.3 3-axis digital sensor

The MC56F80000-EVK board supports motion sensing using NXP FXLS8974CFR3

accelerometer. FXLS8974CFR3 is a compact 3-axis MEMS accelerometer designed for

use in applications that require ultra-low-power wake-up on motion.
FXLS8974CFR3 is connected to MC56F80748 through I2C interface, LPI2C. The

INTF_SEL pin of FXLS8974CFR3 has been connected to GND, so that I2C interface

mode is selected for this device.
The SA0 pin of the FXLS8974CFR3 device selects the least significant bit of its I2C

secondary address (device address). SA0 is set to 0 by default, remove R101 to set SA0

to 1.

•

When SA0 = 0, the I2C address (7-bit format) of the FXLS8974CFR3 device is set to

18h (default)

•

When SA0 = 1, the I2C address (7-bit format) of the FXLS8974CFR3 device is set to

19h

Since the BT_MODE pin of the device is connected to GND, default operation mode is

enabled. For more information, refer to FXLS8974CF data sheet.
The following figure shows the accelerometer circuit diagram.

VDD

VDD

VDD

VDD

C66

0.1 µF

R101

0

R160

0

R100

0

DNP

R152

0

C65

4.7 µF

R92

0

FXLS 8974CFR3

U18

BT_MODE

2

SCL/SCLK

5

INTF_SEL

9

SPI_CS/WAKE_UP

7

SA0/SPI_MISO

3

SDA/SPI_MOSI/SPI_DATA

4

INT1/MOT_DET

8

INT2/EXT_TRIG/BOOT_OUT

6

V

D

D

1

G

N

D

1

0

R98

10K

C67

0.1 µF

R159

0

DNP

R93

0

R87
10K
DNP

R85

4.7K

R86
10K
DNP

R89

0

R84
4.7K

GF3

GF8

GF2

GF6
GC13

INT1_COMBO

INT2_COMBO

WAKE_UP

LP_SCL0

LP_SDA0

Figure 8. Accelerometer circuit diagram

FXLS8974CFR3 pin/signal

MC56F80748 pin

Description

SCL/SCLK

GPIOF3 (LP_SCL0)

I2C serial clock

SDA

GPIOF2 (LP_SDA0)

I2C serial data

INT1/MOT_DET

GPIOF6 (INT1_COMBO)

Mode-dependent multifunction I/O pin 1. For more detail,

refer to 

FXLS8974CF data sheet

.

INT2/EXT_TRIG/BOOT_OUT GPIOC13 (INT2_COMBO)

(disconnected from GPIOC13

by default)

Mode-dependent multifunction I/O pin 2. For more detail,

refer to 

FXLS8974CF data sheet

.

Table 12. FXLS8974CFR3 pin connections

MC56F80000-EVKUM

All information provided in this document is subject to legal disclaimers.

© 2022 NXP B.V. All rights reserved.

User manual

Rev. 1 — 14 December 2022

14 / 26

Содержание MC56F80000-EVKUM

Страница 1: ...Keywords MC56F80000 EVK MC56F80748 MC56F80xxx Abstract The NXP MC56F80000 Evaluation Kit board MC56F80000 EVK is a simple yet sophisticated design featuring the MC56F80748 digital signal controller DS...

Страница 2: ...ly device MK26FN2M0VMI18 The MC56F80000 EVK hardware is form factor compatible with the Arduino R3 pin layout providing a broad range of expansion board options The onboard interface includes a 3 axis...

Страница 3: ...ve Document Description Link how to access MC56F80xxx Reference Manual Intended for system software and hardware developers and applications programmers who want to develop products with this device M...

Страница 4: ...ino Header2 SPI JTAG MICRO USB K26 OpenSDA 1117 3 3V LDO P5V0_OSDA_OUT VDD 3V3 SCI0 FXLS8974CFR3 3 axis e compass PWM with RC filter Resistor Divider x3 User LEDs x3 Mechanical Buttons x4 8MHz PWM LED...

Страница 5: ...port onboard debugger external 5 V power connector J10 JTAG connector for MC56F80748 J14 OpenSDA K26 JTAG J26 USB virtual serial port CP210x external 5 V power connector Note The CP210x is DNP by defa...

Страница 6: ...48 DSC The processor is based on 32 bit 56800EF core of up to 100 MIPS at 100 MHz core frequency Note For details on the MC56F80748 DSC refer to MC56F80 XXX Reference Manual Power supply 5 V input pow...

Страница 7: ...I1 in MC56F80748 JTAG connector J10 to program and debug MC56F80748 when all the four jumpers in J13 are disconnected Mechanical buttons GPIO Five Tactile switches SW 1 5 as push buttons SW1 is the re...

Страница 8: ...ter Section 2 1 1 J10 2x7 connector JTAG connector to program and debug the MC56 F80748 Note Remove four jumpers on J13 when this JTAG connector is used This is to avoid the impact of onboard OpenSDA...

Страница 9: ...rcuit with MC56F80748 GPIOD2 TCK signal Shorted pin 3 4 default setting Connect OpenSDA circuit with MC56F80748 GPIOD3 TMS signal Shorted pin 5 6 default setting Connect OpenSDA circuit with MC56F8074...

Страница 10: ...ting diodes LEDs to monitor system functions such as power on reset board faults and so on The information collected from LEDs can be used for debugging purposes LEDs are highlighted in Figure 4 The t...

Страница 11: ...rnal DC power supply adapter J7 OpenSDA USB micro AB connector J12 I O header J3 pin 6 CP2102 USB micro AB connector J26 The following figure shows the 5 V power source selection circuit diagram 5 V P...

Страница 12: ...supply for pin 12 of 2x8 pin Arduino power header J3 Table 9 5 V power sources 1 P5V0_OSDA_OUT is only available from P5V0_OSDA when USB cable is connected to J12 and a correct OpenSDA firmware has b...

Страница 13: ...er supply for OpenSDA JTAG SWD connector J14 Power supply for voltage level translators NTSX2102GU8H U5 74LVC1T45GW U7 U8 U9 U10 NTSX2102GU8H U12 Table 10 3 3 V power nodes on MC56F80000 EVK The follo...

Страница 14: ...information refer to FXLS8974CF data sheet The following figure shows the accelerometer circuit diagram VDD VDD VDD VDD C66 0 1 F R101 0 R160 0 R100 0 DNP R152 0 C65 4 7 F R92 0 FXLS8974CFR3 U18 BT_MO...

Страница 15: ...PI Flash interface circuit diagram MOSI 0 MISO 0 SCK0 SS0 VDD VDD U13 MX25L512E CS 1 SO SIO1 2 WP 3 GND 4 SI SIO0 5 SCLK 6 HOLD 7 VCC 8 EP 9 C69 0 1 F R95 10K R136 0 R134 0 R135 0 R133 0 R97 10K GC10...

Страница 16: ...ut J19 HDR 1X2 JUMPER DEFAULT 1 2 1 2 C76 0 1 F J15 HDR_1X3 JUMPER DEFAULT 2 3 1 2 3 TP17 R108 2 0K R110 10K R109 1 0K TP18 TP16 J16 HDR 1X2 JUMPER DEFAULT 1 2 1 2 GB6 GE6 GB7 GC4 GA1 OPA_IN0 GE6 PWMA...

Страница 17: ...in 2 and pin 3 of J15 are connected J16 and J19 are both connected and GPIOA1 is configured as inverting input the OPAMP mode for OPAMP can be tested You can modify the gain of the OPAMP circuit by ch...

Страница 18: ...100 DNP R125 100 C89 220 pF R118 0 C77 150 pF C83 150 pF C90 220 pF C82 220 pF J24 HDR_1X3 JUMPER DEFAULT 1 2 1 2 3 GA0 GB0 GC4 GA1 GB1 GF0 GA4 GB4 OPB_P OPA_OUT OPB_OUT OPA_N CUR_A CUR_B Figure 14 OP...

Страница 19: ...register configuration RC filter can also be added between the OPAMP and the ADC input when R138 and R140 are soldered which is not populated by default In this case the filtered OPAMP output signal i...

Страница 20: ...X GPIOC3 Boot_RXD0 Function RXD0 Peripheral SCI0 Direction I SDA_SWD_SWO GPIOD1 TGTMCU_TDO Test data out SDA_SWD_SCK GPIOD2 TGTMCU_TCK Test clock SDA_SWD_DOUT GPIOD3 TGTMCU_TMS Test mode select SDA_SW...

Страница 21: ...2 ANA3 B3 1 Not connected 4 GPIOA4 ANA4 3 Not connected 6 GPIOA5 ANA5 5 Not connected 8 GPIOB1 ANB1 7 Not connected 10 GPIOB4 ANB4 9 Not connected 12 GPIOB5 ANB5 11 Not connected Table 18 J4 2x6 pin...

Страница 22: ...mapping between OpenSDA and DSC using SCI0 interface CP2102N USB to UART bridge controller Not populated by default The device provides a virtual COM interface between the host computer and MC56F8074...

Страница 23: ...C TXD GPIOC12 RXD1 QSCI1 receive data input on DSC Table 20 CP2102N pin connections 2 12 Debug 2 12 1 JTAG interface The MC56F80748 processor has five GPIO pins multiplexed with the four JTAG signals...

Страница 24: ...ion SDA_SWD_SCK SDA_SWD_EN P3V3_VREG_ OUT U7 J13 short pin 1 2 GPIOD2 TCK VDD TAP clock SDA_SWD_ DOUT SDA_SWD_OE P3V3_VREG_ OUT U8 J13 short pin 3 4 GPIOD3 TMS VDD TAP machine state SDA_SWD_ DOUT_TDI...

Страница 25: ...roducts using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer s NXP does not accept any lia...

Страница 26: ...is digital sensor 14 2 4 SPI Flash interface 15 2 5 Resistor dividers 15 2 6 PWM interface 16 2 7 OPAMP test circuit 18 2 8 OpenSDA 19 2 9 Input output headers 20 2 10 Arduino compatibility 21 2 11 US...

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