EVB-VF522R3 Platform User’s Guide, Rev. 0, 11/2014
32
Freescale Semiconductor, Inc.
Configuration settings
NOTE
Some active signals, i.e. I
2
C, can be shared by several peripherals without
any problems.
16 Configuration settings
Table 15
shows available settings of the configuration devices on the EVB. The default settings shown in
bold text
should allow a more rapid return to the default EVB state if required.
EVB Function
1
st
Used Function
of MCU Pin(s)
2
nd
Used Function of
MCU Pin(s)
Shared with EVB
Function(s)
“Aux In” dedicated
audio ADC
RMII1_[MDC, MDIO]
ESAI_x
DSP, Tuner
DSPI0_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 Audio
Outputs
DSPI0_PCS1
AUDIO_MCLK
Audio ADC, DSP
Tuner
RMII1_[MDC, MDIO]
EASI_x
Audio ADC, DSP
CAN1_x
I
2
C1_x
DCU I
2
C, Peripheral
Reset-Control
GPIO (for interrupt)
---
Optionally MAC (Ethernet)
3.3V-powered I
2
C
FB_AD[27,28]
I
2
C2_[SCL,SDA]
---
Generic CD
I
2
C3_[SDA,SCL]
---
5V-powered I
2
C,
MAC (Ethernet), MLB
SAI2_[BCLK, SYNC, DATA]
---
---
Bluetooth
SAI0_TX_[DATA, SYNC]
RCONx
RCON[21,23]
SCI0_TX
---
---
SDHC_[CLK,CMD,DATA1,DATA3],
FB_AD20
---
SD
Table 15. Configuration settings
Device
Function
Position
Legend
Description
J1
“AUDIO IN”
ADC routing
1-2
1
To MCU
2-3
3
To DSP
Removed
---
To none
Table 14. Pin usage and sharing