CP3BT23_14 Datasheet, PDF (298/324 Pages) Texas Instruments – CP3BT23 Reprogrammable Connectivity Processor with Bluetooth and Dual CAN Interfaces

CP3BT23
SNOSCX3A – JULY 2013 – REVISED JANUARY 2014
29.14 MICROWIRE/SPI TIMING
Symbol
t_MSKh
t_MSKl
t_MSKp
t_MSKh
t_MSKs
t_MWCSh
t_MWCSs
t_MDIh
t_MDIs
t_MSKh
t_MSKl
t_MSKp
t_MSKd
t_MDOf
t_MDOh
t_MDOnf
Table 29-6. Microwire/SPI Signals
Figure
Figure 29-
11
Figure 29-
11
Figure 29-
11
Figure 29-
12
Figure 29-
11
Figure 29-
11
Figure 29-
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Figure 29-
12
Figure 29-
11
Figure 29-
12
Figure 29-
11
Figure 29-
13
Figure 29-
11
Figure 29-
13
Figure 29-
11
Figure 29-
13
Figure 29-
11
Figure 29-
11
Figure 29-
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Figure 29-
12
Figure 29-
11
Figure 29-
11
Figure 29-
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Figure 29-
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Figure 29-
15
Description
Reference
Microwire/SPI Input Signals
Microwire Clock High
At 2.0V (both edges)
Microwire Clock Low
Microwire Clock Period
MSK Hold (slave only)
At 0.8V (both edges)
SCIDL bit = 0; Rising Edge (RE) MSK
to next RE MSK
SCIDL bit = 1; Falling Edge (FE) MSK
to next FE MSK
After MWCS goes inactive
MSK Setup (slave only)
Before MWCS goes active
MWC Hold (slave only)
SCIDL bit = 0: After FE MSK
SCIDL bit = 1: After RE MSK
MWC Setup (slave only)
SCIDL bit = 0: Before RE MSK
SCIDL bit = 1: Before FE MSK
Microwire Data In Hold (master)
Normal Mode: After RE MSK
Alternate Mode: After FE MSK
Microwire Data In Hold (slave)
Normal Mode: After RE MSK
Alternate Mode: After FE MSK
Microwire Data In Setup
Normal Mode: Before RE MSK
Alternate Mode: Before FE MSK
Microwire/SPI Output Signals
Microwire Clock High
At 2.0V (both edges)
Microwire Clock Low
At 0.8V (both edges)
Microwire Clock Period
MSK Leading Edge Delayed (master
only)
SCIDL bit = 0: Rising Edge (RE) MSK
to next RE MSK
SCIDL bit = 1: Falling Edge (FE) MSK
to next FE MSK
Data Out Bit #7 Valid
Microwire Data Float b (slave only) After RE on MWCS
Microwire Data Out Hold
Normal Mode: After FE MSK
Alternate Mode: After RE MSK
Microwire Data No Float (slave only) After FE on MWCS
Min (ns)
80
80
200
40
80
40
80
0
40
80
40
40
100
0.5 t_MSK
–
0.0
0
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Max (ns)
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1.5 t_MSK
–
25
298 Electrical Characteristics
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