Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 196

Program Wait Insertion: From 0 to 7 wait states can be inserted automatically between the T
state and T state on an individual area basis in 3-state access space, according to the settings in
3
WTCRA and WTCRB.
Pin Wait Insertion: Setting the WAITE bit to 1 in BCR enables wait input by means of the
:$,7 pin. When external space is accessed in this state, a program wait is first inserted in
accordance with the settings in WTCRA and WTCRB. If the :$,7 pin is low at the falling edge
of ø in the last T or T
2
inserted until it goes high. This is useful when inserting seven or more T
the number of T states to be inserted for different external devices. The WAITE bit setting
w
applies to all areas. Figure 6.18 shows an example of wait state insertion timing.
The settings after a reset are: 3-state access, insertion of 7 program wait states, and :$,7 input
disabled.
Rev. 1.0, 09/01, page 152 of 904
state is inserted. If the :$,7 pin is held low, T
state, another T
w w
states are
w
states, or when changing
w
2