h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 152

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

6.5.5
The read strobe (RD) timing can be changed for individual areas by setting bits RDN3 to RDN0 to
1 in RDNCR.
When the DMAC is used in single address mode, note that if the RD timing is changed by setting
RDNn to 1, the RD timing will change relative to the rise of DACK.
Figure 6.20 shows an example of the timing when the read strobe timing is changed in basic bus 3-
state access space.
Rev. 2.00, 03/04, page 120 of 534
RDNn = 0
RDNn = 1
Note: n = 3 to 0
Read Strobe (RD) Timing
φ
Address bus
Data bus
Data bus
Figure 6.20 Example of Read Strobe Timing
T
1
Bus cycle
T
2
T
3