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SMS01GAF 데이터시트(PDF) 35 Page - Numonyx B.V

부품명 SMS01GAF
상세설명  64 MByte, 128 MByte, 256 MByte 512 MByte and 1 GByte, 3.3V Supply Secure Digital??Card
PDF  61 Pages
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제조업체  NUMONYX [Numonyx B.V]
홈페이지  http://www.numonyx.com
Logo NUMONYX - Numonyx B.V

SMS01GAF 데이터시트(HTML) 35 Page - Numonyx B.V

Back Button SMS01GAF Datasheet HTML 31Page - Numonyx B.V SMS01GAF Datasheet HTML 32Page - Numonyx B.V SMS01GAF Datasheet HTML 33Page - Numonyx B.V SMS01GAF Datasheet HTML 34Page - Numonyx B.V SMS01GAF Datasheet HTML 35Page - Numonyx B.V SMS01GAF Datasheet HTML 36Page - Numonyx B.V SMS01GAF Datasheet HTML 37Page - Numonyx B.V SMS01GAF Datasheet HTML 38Page - Numonyx B.V SMS01GAF Datasheet HTML 39Page - Numonyx B.V Next Button
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SMSxxxAF, SMSxxxFF, SMSxxxBF
Timings
35/61
6
Timings
The symbols listed in Table 24 are used in all timing diagrams.
The difference between P-bits and Z-bits is that P-bits are actively driven to High by the card
or the host output driver whereas Z-bits are driven to High and kept High by the pull-up
resistors RCMD and RDAT. P-bits, which are actively driven High, are less sensitive to noise.
All timing values are defined in Table 25
6.1
Command and Response
The host command and the card response are both clocked out on the rising edge of the
host clock.
6.1.1
Card Identification and Operating Conditions Timings
The timings for CMD2 (ALL_SEND_CID) and ACMD41 are shown in Figure 17 The
command is followed by two Z-bits (to leave time for the bus to switch direction) and then by
P-bits pushed up by the responding card. The card response to the host command starts
after NID clock cycles.
Table 24.
Timing Diagram Symbols
Symbol
Description
S
Start bit (= ‘0’)
T
Transmitter bit (Host = '1', Card = '0')
P
One-cycle pull-up (= '1')
E
End bit (=1)
Z
High impedance state (-> = '1')
D
Data bits
X
Don't Care data bits (from card)
*
Repetition
CRC
Cyclic redundancy check bits (7 bits)
Card active
Host active



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