M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 288

• 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. 12.4.4 Timing of acceptance of Hold request and termination of Hold state (3)
12–20
External address bus /
External address bus
Judgment timing of input
<When inputting “L” level to
Notes 1: This figure shows the case of no Wait.
completed with continuous 2-bus cycle>
External data bus
level to HOLD pin
2: Clock
Clock
Signals timing to be input or output externally is ordained by clock
HOLD
HLDA
External data bus
BHE
R/W
When accepting a Hold request, not a new address but an
Hold request cannot be accepted before input/output of 16-bit
State when inputting “L” level to
ALE
address output just before is output again.
data is completed.
E
1
Using
1
has the same polarity and the same frequency as
Address A
Not accepted
Term using bus
Data length
HOLD
Data
7702/7703 Group User’s Manual
16
pin during term using bus; when data access is
Address A+1
Data
16
HOLD
External data bus width
(Access from odd address)
1
1
pin
8
Floating
Floating
Floating
Hold state
.
1
1
as a basis.
1
Term using bus
Address B