HD64F3437TF16 Datasheet, PDF (112/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Section 5 Wait-State Controller
5.1 Overview
The H8/3437 Series has 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
Wait-state controller
(WSC)
WSCR
Wait request
signal
Legend:
WSCR: Wait-state control register
Figure 5.1 Block Diagram of Wait-State Controller
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