![background image](http://html1.mh-extra.com/html/rabbit/rabbitcore-rcm4100/rabbitcore-rcm4100_user-manual_3119422080.webp)
76
RabbitCore RCM4100
Figure A-4 shows a typical timing diagram for the Rabbit 4000 microprocessor external
I/O read and write cycles.
Figure A-4. External 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 (no extra wait states)
CLK
A[15:0]
External I/O Write (no extra wait states)
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 RabbitCore RCM4100
Страница 1: ...RabbitCore RCM4100 C Programmable Core Module User s Manual 019 0153 090508 G...
Страница 18: ...14 RabbitCore RCM4100...
Страница 102: ...98 RabbitCore RCM4100...
Страница 106: ...102 RabbitCore RCM4100...
Страница 110: ...106 RabbitCore RCM4100...
Страница 112: ......