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RabbitCore RCM3365/RCM3375
Figure A-4 shows a typical timing diagram for the Rabbit 3000 microprocessor external I/O
read and write cycles.
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.
Tadr
Tadr
External I/O Read (one programmed wait state)
CLK
A[15:0]
External I/O Write (one programmed wait state)
CLK
A[15:0]
/IORD
valid
T1
Tw
T1
Tw
T2
valid
T2
/BUFEN
/IOCSx
/IOWR
/BUFEN
D[7:0]
valid
Tsetup
Thold
/CSx
/IOCSx
TCSx
TIOCSx
TIORD
TBUFEN
TCSx
TIOCSx
TIORD
TBUFEN
valid
D[7:0]
/CSx
TCSx
TIOCSx
TIOWR
TCSx
TIOCSx
TIOWR
TBUFEN
TBUFEN
TDHZV
TDVHZ
Содержание RCM3365
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