h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 210

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 7 Bus Controller
7.1.2
Figure 7-1 shows a block diagram of the bus controller.
Rev. 6.00 Feb 22, 2005 page 150 of 1484
REJ09B0103-0600
Other features
External bus release function
Block Diagram
External bus control signals
Legend:
ABWCR: Bus width control register
ASTCR:
BCRH:
BCRL:
WCRH:
WCRL:
Access state control register
Bus control register H
Bus control register L
Wait control register H
Wait control register L
Figure 7-1 Block Diagram of Bus Controller
controller
Wait
Area decoder
Bus arbiter
controller
Bus
ABWCR
ASTCR
WCRH
WCRL
BCRH
BCRL
CPU bus request signal
DTC bus request signal
CPU bus acknowledge signal
DTC bus acknowledge signal
Internal control
signals
Bus mode signal
Internal
address bus