M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 287

• 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. 12.4.3 Timing of acceptance of Hold request and termination of Hold state (2)
External address bus /
External address bus
Judgment timing of input
<When inputting “L” level to
completed with 1-bus cycle>
External data bus
level to HOLD pin
Notes 1: This figure shows the case of no Wait.
Clock
CONNECTION WITH EXTERNAL DEVICES
HOLD
HLDA
External data bus
When accepting a Hold request, not a new address but an address
output just before is output again.
BHE
R/W
State when inputting “L” level to
ALE
2: Clock
E
1
Signals timing to be input or output externally is ordained by clock
Using
1
has the same polarity and the same frequency as
Term using bus
Address A
Data length
HOLD
7702/7703 Group User’s Manual
16
Data
8
pin during term using bus; when data access is
1
Address A
16
1
(Access from even address)
External data bus width
HOLD
Floating
Floating
Floating
pin
8, 16
Hold state
1
.
12.4 Hold function
1
1
Address B
Term using bus
as a basis.
12–19