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参数资料
型号： MC9328MXLDVM15R2
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256
封装： 14 X 14 MM, 1.30 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, MAPBGA-256
文件页数： 55/90页
文件大小： 1242K
代理商： MC9328MXLDVM15R2
Functional Description and Application Information
MC9328MXL Technical Data, Rev. 8
Freescale Semiconductor
59
4.7.1
Command Response Timing on MMC/SD Bus
The card identification and card operation conditions timing are processed in open-drain mode. The card
response to the host command starts after exactly NID clock cycles. For the card address assignment,
SET_RCA is also processed in the open-drain mode. The minimum delay between the host command and
card response is NCR clock cycles as illustrated in Figure 43. The symbols for Figure 43 through
Figure 47 are defined in Table 23.
Table 22. SDHC Bus Timing Parameter Table
Ref
No.
Parameter
1.8 ± 0.1 V
3.0 ± 0.3 V
Unit
Minimum
Maximum
Minimum
Maximum
1
CLK frequency at Data transfer Mode
(PP)1—10/30 cards
1 C
L ≤ 100 pF / 250 pF (10/30 cards)
0
25/5
0
25/5
MHz
2
CLK frequency at Identification Mode2
2 C
L ≤ 250 pF (21 cards)
0
400
0
400
kHz
3a
Clock high time1—10/30 cards
6/33
–
10/50
–
ns
3b
Clock low time1—10/30 cards
15/75
–
10/50
–
ns
4a
Clock fall time1—10/30 cards
–
10/50
(5.00)3
–
10/50
ns
4b
Clock rise time1—10/30 cards
–
14/67
(6.67)3
–
10/50
ns
5a
Input hold time3—10/30 cards
3 C
L ≤ 25 pF (1 card)
10.3/10.3
–
9/9
–
ns
5b
Input setup time3—10/30 cards
10.3/10.3
–
9/9
–
ns
6a
Output hold time3—10/30 cards
5.7/5.7
–
5/5
–
ns
6b
Output setup time3—10/30 cards
5.7/5.7
–
5/5
–
ns
7
Output delay time3
0
16
0
14
ns
Table 23. State Signal Parameters for Figure 43 through Figure 47
Card Active
Host Active
Symbol
Definition
Symbol
Definition
Z
High impedance state
S
Start bit (0)
D
Data bits
T
Transmitter bit (Host = 1, Card = 0)
*
Repetition
P
One-cycle pull-up (1)
CRC
Cyclic redundancy check bits (7 bits)
E
End bit (1)
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.MXL
Product
Family
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相关代理商/技术参数
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