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
7.8
On-Chip Switching Regulator (3.3 V to 1.0 V) Connection................................................30
Содержание mPD720231
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