Renesas H8S/2633 Series Hardware Manual page 86

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Table of Contents

Operating mode

System control

Name and Function

Mode pins: These pins set the operating mode.

The relation between the settings of pins MD2 to MD0

and the operating mode is shown below. These pins

should not be changed while the H8S/2633 Series is

Reset input: When this pin is driven low, the chip is

Manual reset: When this pin is driven low, a

transmission is made to manual reset mode.

Standby: When this pin is driven low, a transition is

made to hardware standby mode.

Bus request: Used by an external bus master to issue

a bus request to the H8S/2633 Series.

Bus request output: The external bus request signal

used when an internal bus master accesses external

space in the external bus-released state.

Bus request acknowledge: Indicates that the bus has

been released to an external bus master.

Flash write enable: Pin for flash memory use (in

planning stage).

Operating Mode