HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 145

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

7.1 Overview
To simplify interfacing to low-speed external devices, the H8/532 has an on-chip wait-state
controller (WSC) that can insert wait states (T
The wait-state function can be used in CPU and DTC access cycles to external addresses. It is not
used in access to on-chip supporting modules. The T
and T
state control register (WCR), or by holding the WAIT pin Low for the required interval.
7.1.1 Features
The main features of the wait-state controller are:
• Selection of three operating modes
• 0, 1, 2, or 3 wait states can be inserted.
Programmable wait mode, pin wait mode, or pin auto-wait mode
And in the pin wait mode, 4 or more states can be inserted by holding the WAIT pin Low.
3
state in the bus cycle. The number of wait states can be selected by a value set in the wait-
Section 7 Wait-State Controller
W
127
) to prolong bus cycles.
W
states are inserted between the T
2
state