CMR3000-D0X VTI Hamlin, CMR3000-D0X Datasheet - Page 17

• Manufacturer Part Number: CMR3000-D0X
• Description: Cmr3000-d0x Block Diagram With Digital Spi And I 2 C Interface
• Manufacturer: VTI Hamlin

4.5.3 SPI AC characteristics
4.5.4
VTI Technologies Oy
Myllynkivenkuja 6
P.O. Box 27
FI-01621 Vantaa
www.vti.fi
I
2
C AC characteristics
The AC characteristics of the CMR3000 SPI interface are defined in Figure 9 and in Table 6.
Figure 9. Timing diagram for SPI communication.
Table 6. AC characteristics of SPI communication.
1)
Please, see Phillips Semiconductors, The I
33.
Terminal CSB, SCK
Terminal SCK
Terminal MOSI, SCK
Terminal MISO, CSB
Terminal MISO, SCK
Terminal MOSI, CSB
No
10
11
12
13
T
1
2
3
4
5
6
7
8
9
.
CSB
SCK
MOSI
MISO
per
is SCK period
Parameter
Time from CSB (10%) to SCK (90%)
Time from SCK (10%) to CSB (90%)
Time from CSB (90%) to SCK (90%)
Time from SCK (10%) to CSB (10%)
SCK high time
Time from changing MOSI (10%, 90%)
to SCK (90%) Data setup time
Time from SCK (90%) to changing
MOSI (10%, 90%) Data hold time
Time from CSB (10%) to stable MISO
(10%, 90%)
Time from CSB (90%) to high
impedance state of MISO
Time from SCK (10%) to stable MISO
(10%, 90%)
level (90%)
SCK low time
SCK Frequency
Time between SPI cycles, CSB at high
T
VAL1
T
LS1
(1
.
MSB in
MSB out
Doc.Nr. 82112900.A.02
T
T
CH
HOL
(1
.
T
VAL2
T
CL
(1
(1
C
< 50 pF
C
< 50 pF
C
< 50 pF
C
< 50 pF
C
< 50 pF
Conditions
L
L
L
L
L
DATA in
DATA out
at MISO
at MISO
at MISO
at MISO
at MISO
2
C bus specification, Version 2.1, January 2000, pp. 31-
fsck = 1/T
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
VAL1
VAL2
SET
HOL
SET
LS1
LS2
LS3
LS4
CL
CH
LH
LZ
per
LSB in
LSB out
0.8* T
0.8* T
T
T
T
T
T
T
Min
per
per
per
per
per
per
12
/2
/2
/4
/4
/4
/4
per
per
/2
/2
T
LS2
T
T
Typ
per
per
T
/2
/2
LZ
T
CMR3000-D0X Series
LH
1.3*T
T
T
Max
0.5
er
per
per
/4
/4
/4
p
MHz
Rev. A.02
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
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