h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 244

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 7 Bus Controller
(3) Relationship between Chip Select (
Depending on the system’s load conditions, the
example is shown in figure 7-17.
In this case, with the setting for no idle cycle insertion (a), there may be a period of overlap
between the bus cycle A
Setting idle cycle insertion, as in (b), however, will prevent any overlap between the
signals.
In the initial state after reset release, idle cycle insertion (b) is set.
Note: * The
Rev. 6.00 Feb 22, 2005 page 184 of 1484
REJ09B0103-0600
+5
+5
*
*
*
094
4,
B
C S
Figure 7-17 Relationship between Chip Select (
+5
signal is generated externally rather than inside the LSI device.
(a) Idle cycle not inserted
(ICIS0 = 0)
R D
signal and the bus cycle B
C S
* ) Signal and Read (
R D
+5
+5
*
*
signal may lag behind the
094
C S
4,
B
signal.
C S
(b) Idle cycle inserted
R D
) * and Read (
(Initial value ICIS0 = 1)
) Signal
C S
R D
signal * . An
R D
)
and
C S