Renesas mPD720231 User Manual page 7

Usb3.0 to sata3 bridge controller

Table of Contents

5.2 HDD/SSD boot mode .............................................................................................................21

6. General Purpose I/O .........................................................................................................................22

6.1 Features..................................................................................................................................22

6.2 SPI interface...........................................................................................................................22

6.3 Disk Activity LED...................................................................................................................22

6.4 Reset signal for external device ..........................................................................................23

6.5 Clockout function ..................................................................................................................23

6.6 External trigger in..................................................................................................................23

7. How to Connect to External Elements ...........................................................................................24

7.1 Handling Unused Pins ..........................................................................................................24

7.2 Upstream Port Connection...................................................................................................25

7.3 RREF Connection ..................................................................................................................26

7.4 Crystal Connection................................................................................................................26

7.5 External Serial ROM Connection .........................................................................................27

7.6 Serial ATA Interface Connection .........................................................................................28

7.7 On-Chip LDO (5 V to 3.3 V) Connection ..............................................................................29

Table of Contents