HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 171

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

16-Bit, Three-State-Access Areas: Figures 6.11 to 6.13 show the timing of bus control signals
for a 16-bit, three-state-access area. In these areas, the upper data bus (D
accesses to even addresses and the lower data bus (D
states can be inserted.
Figure 6.11 Bus Control Signal Timing for 16-Bit, Three-State-Access Area (1)
Read access
Write access
Note: n = 7 to 0
Address bus
D
D
D
D
HWR
15
LWR
15
CS
7
7
RD
AS
to D
to D
φ
to D
to D
n
0
0
8
8
(Byte Access to Even Address)
High
T
1
Even external address in area n
7
to D
Undetermined data
Bus cycle
Rev.4.00 Aug. 20, 2007 Page 127 of 638
0
) in accesses to odd addresses. Wait
T
2
Valid
15
to D
T
Invalid
Valid
3
8
) is used in
REJ09B0395-0400
6. Bus Controller