TDA7503 Просмотр технического описания (PDF) - STMicroelectronics

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TDA7503

DUAL DSP PLUS MICRO FOR AUDIO APPLICATIONS

STMicroelectronics 

TDA7503

PIN DESCRIPTION (continued)

N.

Name

Type

Reset

Status

27

VSS7

GND

–

28

VDD7

PWR

–

29 DSP1_GPIO0 I/O

–

30 DSP0_GPIO0 I/O

–

31

XPSEN

I/O

I

32

RA11(P2.3)

I/O

I

33

RA9(P2.1)

I/O

I

34

RA8(P2.0)

I/O

I

35 RA13(P2.5) I/O

I

36 RA14(P2.6) I/O

I

37 RA15(P2.7) I/O

I

38 RA12(P2.4) I/O

I

39 SRA10/DRA6 O

High

40

DRD

O

High

41 SRA11/DRA7 O

High

O/P

Load

Buffer

Function

VSS Power Ground.

VDD 3.3V Power Supply.

100pF

4mA

General-Purpose for DSP1 (Input/Output). Dedicated

general-purpose I/O pin connected to DSP0. Under

control of the GPIODIR and GPIODAT registers inside

the core.

100pF

4mA

General-Purpose for DSP0 (Input/Output). Dedicated

general-purpose I/O pin connected to DSP0. Under

control of the GPIODIR and GPIODAT registers inside

the core.

200pF

8mA

Microcontroller External Program Memory Enable.

External program memory enable pin. Active Low.

Changes functionality to RD when Microcontroller is

fetching instructions out of internal AUX ram. Controlled

by the PSSEL and PSBIT bits in the PINCTL register.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 11 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 9 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 8 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 13 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 14 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 15 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 12 of a 16 bit address, for external EPROM

and memory mapped devices.

200pF

8mA

DSP SRAM Address Line 10/DSP DRAM Address Line 6.

When in SRAM Mode these pins act as the EMI address

line 10.When in DRAM Mode they act as the EMI address

line 6.

200pF

8mA

DSP SRAM Read Enable/DRAM Read Enable. This pin

serves as the read enable for the EMI when in DRAM and

SRAM Modes.

200pF

8mA

DSP SRAM Address Line 11/DSP DRAM Address Line 7.

When in SRAM Mode these pins act as the EMI address

line 11. When in DRAM Mode they act as the EMI

address line 7.

5/30

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