Marvel 88F6281 User Manual
88F6281
Hardware Specifications
Hardware Specifications
Doc. No. MV-S104859-U0 Rev. E
Copyright © 2008 Marvell
Page 86
Document Classification: Proprietary Information
December 2, 2008, Preliminary
8.6
AC Electrical Specifications
for differential interface
specifications.
8.6.1
Reference Clock AC Timing Specifications
Table 45: Reference Clock AC Timing Specifications
D e s c r i p t i o n
S y m b o l
M i n
M a x
Units
N o t e s
C P U a n d C o r e R e f e r e n c e C l o c k
Frequency F
REF_CLK_XIN
25
-
50 ppm
25 +
50 ppm
50 ppm
MHz
Clock duty cycle
DC
REF_CLK_XIN
40
60
%
Slew rate
SR
REF_CLK_XIN
0.7
V/ns
1
Pk-Pk jitter
JR
REF_CLK_XIN
200
ps
E t h e r n e t R e f e r e n c e C l o c k
Frequency in MII/MMII-MAC mode
F
GE_TXCLK_OUT
2.5 -
100 ppm
100 ppm
50 +
100 ppm
100 ppm
MHz
7
F
GE_RXCLK
MII/MMII-MAC mode clock duty cycle
DC
GE_TXCLK_OUT
35
65
%
7
DC
GE_RXCLK
Slew rate
SR
GE_TXCLK_OUT
0.7
V/ns
1, 7
SR
GE_RXCLK
A u d i o E x t e r n a l R e f e r e n c e C l o c k
Audio external reference clock
F
AU_EXTCLK
256 X F
s
kHz 3
S / P D I F R e c o v e r e d M a s t e r C l o c k
S/PDIF recovered master clock
F
AU_SPDFRMCLK
256 X F
s
kHz 3
I
2
S R e f e r e n c e C l o c k
I
2
S clock
F
I2S_BCLK
64 X F
s
kHz 3
S P I O u t p u t C l o c k
SPI output clock
F
SPI_SCK
TCLK/30
TCLK/4
MHz
2
R T C R e f e r e n c e C l o c k
RTC_XIN crystal frequency
F
RTC_XIN
32.768 kHz
4
Tr a n s p o r t St r e a m ( T S ) O u t pu t M o d e R e f e r e n c e C l o c k
TS output clock in parallel mode
F
TS0_CLK,
F
TS1_CLK
9.61
12.5
MHz
5
TS output clock in serial mode
F
TS0_CLK,
F
TS1_CLK
9.61
83
MHz
5
Tr a n s p o r t St r e a m I n p u t M o d e R e f e r e n c e C l o c k
TS input clock in parallel mode
F
TS0_CLK,
F
TS1_CLK
13.5
MHz
TS input clock in serial mode
F
TS0_CLK,
F
TS1_CLK
83
MHz
Tr a n s p o r t St r e a m E x t e r n a l R e f e r e n c e C l o c k
TS external clock in parallel mode
F
EXT_CLK
9.61
12.5
MHz
5
TS external clock in serial mode
F
EXT_CLK
9.61
83
MHz
5