AM1808_1004 Datasheet, PDF (130/264 Pages) Texas Instruments – AM1808 ARM Microprocessor

AM1808
SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010
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Table 6-47. SATA Input Clock Source Requirements
PARAMETER
Clock Frequency ⁽¹⁾
Jitter
Duty Cycle
Rise/Fall Time
(1) Discrete clock frequency points are supported based on the PLL multiplier used in the SATA PHY.
MIN TYP MAX UNIT
75
375 MHz
50 ps pk-pk
40
60
%
700
ps
6.14.3 SATA Unused Signal Configuration
If the SATA interface is not used, the SATA signals should be configured as shown below.
SATA Signal Name
SATA_RXP
SATA_RXN
SATA_TXP
SATA_TXN
SATA_REFCLKP
SATA_REFCLKN
SATA_MPSWITCH
SATA_CP_DET
SATA_CP_POD
SATA_LED
SATA_REG
SATA_VDDR
SATA_VDD
SATA_VSS
Table 6-48. Unused SATA Signal Configuration
Configuration if SATA peripheral is not used
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
May be used as GPIO or other peripheral function
May be used as GPIO or other peripheral function
May be used as GPIO or other peripheral function
May be used as GPIO or other peripheral function
No Connect
No Connect
Prior to silicon revision 2.0, this supply must be connected to a static 1.2V nominal supply. For silicon
revision 2.0 and later, this supply may be left unconnected for additional power conservation.
Vss
130 Peripheral Information and Electrical Specifications
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