20-101-1051 Datasheet, PDF (80/165 Pages) List of Unclassifed Manufacturers – C-Programmable Core Module with NAND Flash Mass Storage and Ethernet

Figure A-4 shows a typical timing diagram for the Rabbit 3000 microprocessor external I/O
read and write cycles.
External I/O Read (one programmed wait state)
T1
Tw
T2
CLK
A[15:0]
valid
Tadr
/CSx
TCSx
TCSx
/IOCSx
TIOCSx
TIOCSx
/IORD
TIORD
TIORD
/BUFEN
D[7:0]
TBUFEN
TBUFEN
Tsetup
valid
Thold
External I/O Write (one programmed wait state)
T1
Tw
T2
CLK
A[15:0]
/CSx
/IOCSx
/IOWR
/BUFEN
D[7:0]
Tadr
TCSx
TIOCSx
valid
TIOWR
TBUFEN
TDHZV
TCSx
TIOCSx
TIOWR
valid
TBUFEN
TDVHZ
Figure A-4. I/O Read and Write Cycles—No Extra Wait States
NOTE: /IOCSx can be programmed to be active low (default) or active high.
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RabbitCore RCM3365/RCM3375