M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 286

• 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

CONNECTION WITH EXTERNAL DEVICES
12.4 Hold function
Fig. 12.4.2 Timing of acceptance of Hold request and termination of Hold state (1)
12–18
External address bus /
External address bus
Judgment timing of input
External data bus
<When inputting “L” level to
Clock
Signals timing to be input or output externally is ordained by clock
level to HOLD pin
External data bus
State when inputting “L” level to
Clock
HOLD
Unused
HLDA
BHE
ALE
R/W
1
has the same polarity and the same frequency as
E
1
Term unusing bus
This is the term in which the bus is not used, so that not a new
address but an address output just before is output again.
Data length
7702/7703 Group User’s Manual
16
8
Address A
HOLD
pin during term unusing bus>
1
HOLD
External data bus width
1
Floating
Floating
Floating
pin
8, 16
8, 16
Hold state
.
1
1
1
as a basis.
Term using bus
Address B