Section 5 Wait-State Controller
5.1
Overview
The H8/3337 Series and H8/3397 Series have an on-chip wait-state controller that enables
insertion of wait states into bus cycles for interfacing to low-speed external devices.
5.1.1
Features
Features of the wait-state controller are listed below.
•
•
Three selectable wait modes: programmable wait mode, pin auto-wait mode, and pin wait
mode
Automatic insertion of zero to three wait states
5.1.2
Block Diagram
Figure 5.1 shows a block diagram of the wait-state controller.
Wait request
signal
Wait-state controller
WAIT
(WSC)
WSCR
Legend:
WSCR: Wait-state control register
Figure 5.1 Block Diagram of Wait-State Controller
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RENESAS [ RENESAS TECHNOLOGY CORP ]
