TM4C129XNCZAD Datasheet, PDF (905/2191 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C129XNCZAD Microcontroller
Bit/Field
1:0
Name
MODE
Type
RW
Reset
0x0
Description
Host Bus Sub-Mode
This field determines which of four Host Bus 8 sub-modes to use.
Sub-mode use is determined by the connected external peripheral. See
Table 11-8 on page 867 for information on how this bit field affects the
operation of the EPI signals. When used with multiple chip select option
and the CSBAUD bit is set to 1 in the EPIHB8CFG2 register, this
configuration is for CS0n. If the multiple chip select option is enabled
and CSBAUD is clear, all chip-selects use the MODE encoding
programmed in this register.
Value Description
0x0 ADMUX – AD[7:0]
Data and Address are muxed.
0x1 ADNONMUX – D[7:0]
Data and address are separate.
0x2 Continuous Read - D[7:0]
This mode is the same as ADNONMUX, but uses address switch
for multiple reads instead of OEn strobing.
0x3 XFIFO – D[7:0]
This mode adds XFIFO controls with sense of XFIFO full and
XFIFO empty. This mode uses no address or ALE.
Note that the XFIFO can only be used in asynchronous mode.
June 18, 2014
905
Texas Instruments-Production Data