LM3S1H11 Datasheet, PDF (504/956 Pages) Texas Instruments – Stellaris® LM3S1H11 Microcontroller

External Peripheral Interface (EPI)
Bit/Field
1:0
Name
DSIZE
Type
R/W
Reset
0x0
Description
Size of Data Bus
This field defines the size of the data bus (starting at EPI0S0). Subsets
of these numbers can be created by clearing the AFSEL bit for the
corresponding GPIOs. Note that size 32 may not be used with clock,
frame, address, or other control.
The values are:
Value Description
0x0 8 Bits Wide (EPI0S0 to EPI0S7)
0x1 16 Bits Wide (EPI0S0 to EPI0S15)
0x2 24 Bits Wide (EPI0S0 to EPI0S23)
0x3 32 Bits Wide (EPI0S0 to EPI0S31)
This size may not be used with an EPI clock. This value is
normally used for acquisition input and actuator control as well
as other general-purpose uses that require 32 bits per direction.
504
January 23, 2012
Texas Instruments-Production Data