HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 233
HD6412373R
Manufacturer Part Number
HD6412373R
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412373R.pdf
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Bit
10
9
8
7 to 4 ⎯
3
2
1
0
Note:
CKSPE *
Bit Name
⎯
RCD1
RCD0
⎯
RDXC1 *
RDXC0 *
* Not used in the H8S/2378 Group. Do not change the initial value.
Initial Value
0
0
0
All 0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
This bit can be read from or written to. However,
the write value should always be 0.
RAS-CAS Wait Control
These bits select a wait cycle to be inserted
between the RAS assert cycle and CAS 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
Reserved
These bits can be read from or written to. However,
the write value should always be 0.
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
Reserved
This bit can be read from or written to. However,
the write value should always be 0.
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 set to 1.
00: Inserts 1 state
01: Inserts 2 state
10: Inserts 3 state
11: Inserts 4 state
Rev.7.00 Mar. 18, 2009 page 165 of 1136
Section 6 Bus Controller (BSC)
REJ09B0109-0700
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