HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 169

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

6.4.5
8-Bit, Three-State-Access Areas: Figure 6.9 shows the timing of bus control signals for an 8-bit,
three-state-access area. The upper data bus (D
pin is always high. Wait states can be inserted.
Write access
Read access
Basic Bus Control Signal Timing
Figure 6.9 Bus Control Signal Timing for 8-Bit, Three-State-Access Area
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
High
T
1
15
to D
External address in area n
8
) is used in accesses to these areas. The LWR
Undetermined data
Bus cycle
Rev.4.00 Aug. 20, 2007 Page 125 of 638
T
2
Valid
Invalid
T
Valid
3
REJ09B0395-0400
6. Bus Controller