Motorola 24-Bit Digital Signal Processor manual Port a Overview Port a Interface, Port a Motorola

SECTION CONTENTS

SECTION 8.1 PORT A OVERVIEW	3
SECTION 8.2 PORT A INTERFACE	3
8.2.1 Read/Write Control Signals	5
8.2.1.1 Program Memory Select (PS)	5
8.2.1.2 Data Memory Select (DS)	5
8.2.1.3 X/Y Select (X/Y)	5
8.2.2 Port A Address and Data Bus Signals	5
8.2.2.1 Address (A0–A15)	6
8.2.2.2 Data (D0–D23)	6
8.2.3 Port A Bus Control Signals	6
8.2.3.1 Read Enable (RD)	6
8.2.3.2 Write Enable (WR)	6
8.2.3.3 Port A Access Control Signals	6
8.2.4 Interrupt and Mode Control	6
8.2.5 Port A Wait States	6

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