NXP Semiconductors PN7462AU - HIF Selection; Operation Selection; EEPROM Configuration Dependencies

NXP Semiconductors
UM10883
PN7462 family Quick Start Guide - Development Kit
UM10883
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2018. All rights reserved.
User manual
COMPANY PUBLIC
Rev. 1.6 — 14 May 2018
319816
101 of 120
9.9.3 HIF selection
Table 17. Host interface selection
GPIO5_PN7462AU ←
GPIO2.0_LPC
GPIO4_PN7462 ←
GPIO2.1_LPC
Chosen HIF
0
0
Invalid
0
1
I2C
1
0
SPI
1
1
HSU
9.9.4 Operation selection
The tabulated GPIO configuration selects the operation to be performed by examples
shown in 0.
Operation on the packet received on HIF
GPIO8_PN7462AU ←
GPIO2.2_LPC
GPIO7_PN7462AU ←
GPIO2.3_LPC
GPIO6_PN7462AU ←
GPIO2.4_LPC
Chosen HIF
0
0
0
Loopback on HIF
0
0
1
Forward HIF Rx
Packet to I2CM Tx
0
1
0
Forward HIF Rx
Packet to SPIM Tx
0
1
1
Forward HIF Rx
Packet to SPIM &
I2CM Tx Both
1
0
0
Program EEP with HIF
Rx Packet
1
0
1
Program FLASH with
HIF Rx Packet
1
1
0
Forward HIF Rx
Packet to CT
1
1
1
RFU
Application ready PIN is connected with GPIO0.0_LPC on the LPC board.
Important guidelines:
• 1  Logical HIGH as seen/set by the GPIO.
• 0  Logical HIGH as seen/set by the GPIO.
• Start PN7462AU Application before launching LPC Application
• Since both the projects are MCUXpresso IDE based, while updating FW image
via the LPC Link, ensure that the image is downloaded to the correct platform.
9.9.5 EEPROM configuration dependencies
Values from the following EEPROM structures are used in this example: