參數(shù)資料
型號: MCIMX537CVV8C
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 800 MHz, RISC PROCESSOR, PBGA529
封裝: 19 X 19 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, TEPBGA-529
文件頁數(shù): 21/172頁
文件大?。?/td> 4562K
代理商: MCIMX537CVV8C
Electrical Characteristics
i.MX53 Applications Processors for Industrial Products, Rev. 3
Freescale Semiconductor
117
4.7.13
SATA PHY Parameters
This section describes SATA PHY electrical specifications.
4.7.13.1
Reference Clock Electrical and Jitter Specifications
The refclk signal is differential and supports frequencies of 25 MHz or 50-156.25 MHz (100 MHz and
125 MHz are common frequencies). The frequency is pin-selectable (for more information about the
signal, see “Per-Transceiver Control and Status Signals” in the SATA PHY chapter in the Reference
Manual).
Table 76 provides the SATA PHY reference clock specifications.
trfs1
trfs
trfs = 1.6
× T + tsui + tco + tbuf + tbuf
tdzfs
tdzfs = time_dzfs
× T – (tskew1)
time_dzfs
tss
tss = time_ss
× T – (tskew1 + tskew2)
time_ss
tmli
tdzfs_mli
tdzfs_mli =max (time_dzfs, time_mli)
× T – (tskew1 + tskew2)
tli
tli1
tli1 > 0
tli
tli2
tli2 > 0
tli
tli3
tli3 > 0
tcvh
tcvh = (time_cvh
×T) – (tskew1 + tskew2)
time_cvh
—ton
toff
ton = time_on
× T – tskew1
toff = time_off
× T – tskew1
Table 76. Reference Clock Specifications
Parameters
Test Conditions
Min
Max
Unit
Differential peak voltage (typically 0.71 V)
350
850
mV
Common mode voltage
(refclk_p + refclk_m) / 2
175
2,000
mV
Total phase jitter
For information about total
phase jitter, see following
section
—3
ps RMS
Minimum/maximum duty cycle
40
60
% UI
Frequency range
25
156.25
MHz
Table 75. UDMA Out Burst Timing Parameters (continued)
ATA
Parameter
from
Figure 71,
Figure 72,
Figure 73
Value
Controlling
Variable
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