M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 283

• Manufacturer Part Number: M37702E6BFS
• Description: EPROM MCU/8BIT CMOS EMULATION CH
• Manufacturer: Renesas Electronics America

Specifications of M37702E6BFS

• Accessory Type: Emulator EPROM MCU
• For Use With/related Products: 7702
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Fig. 12.3.1 Timings of acceptance of Ready request and termination of Ready state
<Wait>
<No Wait>
Clock
Clock
RDY pin input level
RDY pin input level
RDY
RDY
ALE
ALE
CPU
E
sampling timing
sampling timing
E
C PU
1
1
CONNECTION WITH EXTERNAL DEVICES
Bus not in use
Bus in use
7702/7703 Group User’s Manual
Bus in use
The ready state is terminated.
accepted, so that E stops at “H” level for 1 cycle of
clock
at “L” level.
The “L” level which is input to the RDY pin is not
The “L” level which is input to the RDY pin is
accepted, however
accepted because it is sampled immediately before
Wait by software Wait (indicated by
however
The “L” level which is input to the RDY pin is not
The “L” level which is i nput to the RDY pin is
accepted, so that E stops at “L” level for 1 cycle of
clock
at “L” level.
1
1
(indicated by
(indicated by
CPU
stops at “L” level.
12.3 Ready function
CPU
stops at “L” level.
@ ), and
), and
CPU
@ ),
CPU
stops
stops
12–15