LM3S1G21 Datasheet, PDF (509/955 Pages) Texas Instruments – Stellaris® LM3S1G21 Microcontroller

Stellaris^® LM3S1G21 Microcontroller
Bit/Field
7:6
5:0
Name
WRWS
reserved
Type
R/W
RO
Reset
0x0
Description
CS1n Write Wait States
This field adds wait states to the data phase of CS1n accesses (the
address phase is not affected).
The effect is to delay the rising edge of WRn (or the falling edge of WR).
Each wait state encoding adds 2 EPI clock cycles to the access time.
Value Description
0x0 Active WRn is 2 EPI clocks
0x1 Active WRn is 4 EPI clocks.
0x2 Active WRn is 6 EPI clocks
0x3 Active WRn is 8 EPI clocks
0
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
January 22, 2012
509
Texas Instruments-Production Data