D950CORE View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

D950CORE

16-Bit Fixed Point Digital Signal Processor (DSP) Core

STMicroelectronics 

D950-Core

4.4.2 Registers

PCDR

The Port Control Direction register defines the data direction of each port pin. After reset,

PCDR default value is 0 (Port pins are configured as inputs).

15 14 13 12 11 10 9

-

-

-

-

-

-

-

876543210

- P7D P6D P5D P4D P3D P2D P1D P0D

PiD: Port pin direction

0: Input port pin (def.)

1: Output port pin

- : for bits 8 to 15 indicates RESERVED (read: undefined, write: don’t care)

PCSR

The Port Control Sensitivity register defines sensitivity of each port pin. After reset, PCSR

default value is 0 (Port pins are configured as level-sensitive).

15 14 13 12 11 10 9

-

-

-

-

-

-

-

876543210

- P7S P6S P5S P4S P3S P2S P1S P0S

PiS: Port pin sensitivity

0: Level sensitive (def.)

1: Edge sensitive

- : for bits 8 to 15 indicates RESERVED (read: undefined, write: don’t care)

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