Rev. 1.0, 09/01, page 130 of 904
Bit
Bit Name
Initial Value
R/W
Description
9
8
RCD1
RCD0
0
0
R/W
R/W
RAS-CAS Wait Control
These bits select a wait cycle to be inserted
between the
5$6
assert cycle and
&$6
assert
cycle. A 1- to 4-state wait cycle can be inserted.
00: Wait cycle not inserted
01: 1-state wait cycle inserted
10: 2-state wait cycle inserted
11: 3-state wait cycle inserted
7 to 4
—
0
R/W
Reserved
This bit is always read as 0. The initial value
should not be changed.
3
CKSPE*
0
R/W
Clock Suspend Enable
Enables clock suspend mode for extend read
data during DMAC and EXDMAC single
address transfer with the synchronous DRAM
interface.
0: Disables clock suspend mode
1: Enables clock suspend mode
2
—
0
R/W
Reserved
This bit is always read as 0. The initial value
should not be changed.
1
0
RDXC1*
RDXC0*
0
0
R/W
R/W
Read Data Extension Cycle Number Selection
Selects the number of read data extension cycle
(Tsp) insertion state in clock suspend mode.
These bits are valid when the CKSPE bit is sset
to 1.
00: Inserts 1state
01: Inserts 2state
10: Inserts 3state
11: Inserts 4state
Note:
*
Not used in the H8S/2378 Series. Do not change the initial value.
Содержание H8S/2376 F-ZTAT
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