MCIMX27 Datasheet, PDF (712/1650 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor

Personal Computer Memory Card International Association (PCMCIA) Controller
20.5.13 Endianness Support
The PCMCIA controller supports Big and Little Endian. The Endianness is defined according to the
Endianness input pin to the module. This input should be tied high or low by the chip integrator.
Connecting the input to “1” means Big Endian.Connecting the input to “0” means Little Endian. Dynamic
Endianness is not supported.
20.6 Timing Diagrams
Figure 20-11 and Figure 20-12 show PCMCIA typical accesses.
HCLK
HADDR
CONTROL
HWDATA
HREADY
HRESP
A[25:0]
D[15:0]
WAIT
REG
OE/WE/IORD/IOWR
CE1/CE2
R/W
POE
ADDR 1
CONTROL 1
DATA write 1
OKAY
ADDR 1
DATA write 1
OKAY
REG
OKAY
setup
pulse width
hold
Figure 20-11. Write Accesses PSHT=1, PSST =1
20-28
MCIMX27 Multimedia Applications Processor Reference Manual, Rev. 0.2
Freescale Semiconductor