參數(shù)資料
型號： MCIMX31VMN5CR2
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 532 MHz, MICROPROCESSOR, PBGA473
封裝： 19 X 19 MM, 0.80 MM PITCH, ROHS COMPLIANT, MAPBGA-473
文件頁數(shù)： 54/122頁
文件大?。?/td> 1418K
代理商： MCIMX31VMN5CR2
Electrical Characteristics
MCIMX31/MCIMX31L Technical Data, Rev. 4.1
Freescale Semiconductor
37
4.3.8
DPLL Electrical Specifications
The three PLL’s of the MCIMX31 (MCU, USB, and Serial PLL) are all based on same DPLL design. The
characteristics provided herein apply to all of them, except where noted explicitly. The PLL characteristics
are provided based on measurements done for both sources—external clock source (CKIH), and FPM
(Frequency Pre-Multiplier) source.
4.3.8.1
Electrical Specifications
Table 31 lists the DPLL specification.
Table 30. CSPI Interface Timing Parameters
ID
Parameter
Symbol
Min
Max
Units
CS1
SCLK Cycle Time
tclk
60
—
ns
CS2
SCLK High or Low Time
tSW
30
—
ns
CS3
SCLK Rise or Fall
tRISE/FALL
—7.6
ns
CS4
SSx pulse width
tCSLH
25
—
ns
CS5
SSx Lead Time (CS setup time)
tSCS
25
—
ns
CS6
SSx Lag Time (CS hold time)
tHCS
25
—
ns
CS7
Data Out Setup Time
tSmosi
5—
ns
CS8
Data Out Hold Time
tHmosi
5—
ns
CS9
Data In Setup Time
tSmiso
6—
ns
CS10
Data In Hold Time
tHmiso
5—
ns
CS11
SPI_RDY Setup Time1
1 SPI_RDY is sampled internally by ipg_clk and is asynchronous to all other CSPI signals.
tSRDY
——
ns
Table 31. DPLL Specifications
Parameter
Min
Typ
Max
Unit
Comments
CKIH frequency
15
261
752
MHz
—
CKIL frequency
(Frequency Pre-multiplier (FPM) enable mode)
—
32; 32.768, 38.4
—
kHz FPM lock time
≈ 480 s.
Predivision factor (PD bits)
1
—
16
—
PLL reference frequency range after Predivider
15
—
35
MHz 15
≤ CKIH frequency/PD ≤ 35 MHz
15
≤ FPM output/PD ≤ 35 MHz
PLL output frequency range:
MPLL and SPLL
UPLL
52
190
—
532
240
MHz
—
Maximum allowed reference clock phase noise.
—
± 100 ps
—
Frequency lock time
(FOL mode or non-integer MF)
—
398
—
Cycles of divided reference clock.
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
i.MX31
Product
Family
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