mcimx50 Freescale Semiconductor, Inc, mcimx50 Datasheet - Page 71

• Manufacturer Part Number: mcimx50
• Description: I.mx50 Applications Processors For Consumer Products
• Manufacturer: Freescale Semiconductor, Inc

4.9.2
This section describes the timing parameters of the CSPI and eCSPI modules. The CSPI and eCSPI have
separate timing parameters for master and slave modes. The nomenclature used with the CSPI/eCSPI
modules and the respective routing of these signals is shown in
4.9.2.1
Figure 32
characteristics.
Freescale Semiconductor
CSPIx_DRYN1
CSPIx_CS_x
CSPIx_CLK
CSPIx_DO
CSPIx_DI
eCSPI1
eCSPI2
CSPI
CS1
CS2
CS3
CS4
CS5
CS6
CS7
CS8
ID
depicts the timing of CSPI in master mode and
CSPI and eCSPI Timing Parameters
CSPIx_CLK Cycle Time
CSPIx_CLK High or Low Time
CSPIx_CLK Rise or Fall
CSPIx_CS_x pulse width
CSPIx_CS_x Lead Time (CS setup time)
CSPIx_CS_x Lag Time (CS hold time)
CSPIx_DO Setup Time
CSPIx_DO Hold Time
Module
CSPI Master Mode Timing
CS11
CS7 CS8
CS9 CS10
i.MX50 Applications Processors for Consumer Products, Rev. 0
CS1
Table 47. CSPI Master Mode Timing Parameters
Parameter
Figure 32. CSPI Master Mode Timing Diagram
CS3
GPIO, KPP, DISP0_DAT, CSI0_DAT, and EIM_D through IOMUX
DISP0_DAT, CSI0_DAT, and EIM through IOMUX
DISP0_DAT, EIM_A/D, SD1, and SD2 through IOMUX
Table 46. CSPI Nomenclature and Routing
CS3
CS2
Table 47
t
RISE/FALL
Symbol
t
t
t
CS2
t
Smosi
Hmosi
CSLH
t
t
HCS
SCS
t
SW
clk
I/O Access
Table
lists the CSPI master mode timing
46.
Min
CS6
60
15
—
6
5
5
5
5
Electrical Characteristics
CS4
Max
—
—
—
—
—
—
—
—
CS5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
71