E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 199
E62655RUSB
Manufacturer Part Number
E62655RUSB
Description
EMULATOR BASE H8S/2655R W/USB
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Datasheet
1.E62655RUSB.pdf
(1093 pages)
Specifications of E62655RUSB
Contents
E6000 Emulator Unit and 4 Logic Probes
For Use With/related Products
H8S/2655R
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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6.4.5
When accessing external space, the H8S/2655 Group can extend the bus cycle by inserting one or
more wait states (T
wait insertion using the WAIT pin.
Figure 6.14 shows an example of wait state insertion timing.
Program Wait Insertion
From 0 to 3 wait states can be inserted automatically between the T
individual area basis in 3-state access space, according to the settings of BWCRH and
BWCRL.
Pin Wait Insertion
Setting the WAITE bit in BCRH to 1 enables wait insertion by means of the WAIT pin. When
external space is accessed in this state, a program wait is first inserted. If the WAIT pin is low
at the falling edge of in the last T
held low, T
This is useful when inserting four or more T
for different external devices.
The WAITE bit setting applies to all areas.
Wait Control
w
states are inserted until it goes high.
w
). There are two ways of inserting wait states: program wait insertion and pin
2
or T
w
state, another T
w
states, or when changing the number of T
Rev. 5.00 Sep 14, 2006 page 169 of 1060
w
state is inserted. If the WAIT pin is
2
state and T
Section 6 Bus Controller
REJ09B0331-0500
3
state on an
w
states
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