Renesas Y-ASI4U-V5-DB Hardware User Manual

Y-ASI4U-V5-DB
Hardware User Manual
Introduction
This document explains the hardware design of the Y-ASI4U-V5-DB, its main features and the necessary
hardware setup in order to implement an ASi-5 slave.
Contents
1. Overview ................................................................................................................................. 3
1.1 ASI4U-V5 ASSP Features ....................................................................................................................... 3
1.2 Y-ASI4U-V5-DB Capabilities ................................................................................................................... 3
2. Getting Started ........................................................................................................................ 4
2.1 System Block Diagram ............................................................................................................................ 4
2.2 Default Board Configuration .................................................................................................................... 4
3. Y-ASI4U-V5-DB Components .................................................................................................. 5
3.1 Power Requirements ............................................................................................................................... 5
3.1.1 Power Supply Options ........................................................................................................................... 5
3.1.2 DC/DC Passive Power Supply .............................................................................................................. 6
3.1.3 Renesas ASi-5 Slave Power Supply Reference ................................................................................... 8
3.1.4 Analog/Digital Decoupling ..................................................................................................................... 9
3.1.5 Power Up Behaviour ........................................................................................................................... 10
3.2 Firmware Update Probe connectors...................................................................................................... 10
3.2.1 RL78 Firmware Update Connector...................................................................................................... 10
3.2.2 MIPI20 Debug Connector .................................................................................................................... 10
3.3 Communication Interfaces ..................................................................................................................... 10
3.3.1 CN9 to the ASi Line ............................................................................................................................. 10
3.3.2 Parallel Connector for GPIO access ................................................................................................... 11
3.3.3 PMOD Connector for SPI access ........................................................................................................ 12
3.4 UART Connector ................................................................................................................................... 12
3.4.1 3.5mm Audio Jack Connector ............................................................................................................. 12
3.4.2 UART Access ...................................................................................................................................... 13
3.5 LEDs ...................................................................................................................................................... 13
3.5.1 RL78 Status LEDs ............................................................................................................................... 13
3.5.2 I/O Status LEDs ................................................................................................................................... 15
3.5.3 Power Status LED ............................................................................................................................... 15
3.6 Under Voltage Detection Circuit ............................................................................................................ 15
3.7 Reset Circuit .......................................................................................................................................... 15
3.7.1 Push Button ......................................................................................................................................... 15
R12AN0109ED0100 Rev.1.30
January.14.22
Hardware User Manual
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