TDA7503 Ver la hoja de datos (PDF) - STMicroelectronics

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TDA7503

DUAL DSP PLUS MICRO FOR AUDIO APPLICATIONS

STMicroelectronics 

TDA7503

PIN DESCRIPTION (continued)

N.

Name

Type

Reset

Status

14 GPIO0(P1.0) I/O

I

15

RD(P3.7)

I/O

I

16

WR(P3.6)

I/O

I

17

xALE

I/O

I

18 RAD0(P0.0) I/O

I

19 RAD1(P0.1) I/O

I

20 RAD2(P0.2) I/O

I

21 RAD3(P0.3) I/O

I

22 RAD4(P0.4) I/O

I

23 RAD5(P0.5) I/O

I

24 RAD6(P0.6) I/O

I

25 RAD7(P0.7) I/O

I

26 RA10(P2.2) I/O

I

O/P

Load

Buffer

Function

100pF

4mA

Microcontroller General Purpose. This GPIO line can be

configured to be digital input or output by writing to the P1

and P1DIR registers.This pin is tri-stated while the

RESET pin is held low and is pulled low when RESET is

released. This pin will be pulled high when in IDLE or

PWRDN modes.

200pF

8mA

Microcontroller Read Strobe. External data memory read

strobe. Active Low, or GPIO. This pin can also act as

GPIO using the P3 and P3DIR registers. Disabled by

setting the RDSEL bit in the PINCTL register.

200pF

8mA

Microcontroller Write Strobe. External data memory write

strobe. This pin can also act as GPIO using the P3 and

P3DIR registers.

200pF

8mA

Microcontroller External Address Latch Enable. This pin

is the address latch enable. A logic high indicates that

address/data lines 7 through 0 represent an address.

Inactive for Program/Data fetches from internal AUX.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 0 for external

EPROM and memory mapped peripherals.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 1 for external

EPROM and memory mapped peripherals.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 2 for external

EPROM and memory mapped peripherals. It can also act

as GPIO using the P0 and P0DIR registers.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 3 for external

EPROM and memory mapped peripherals. It can also act

as GPIO using the P0 and P0DIR registers.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 4 for external

EPROM and memory mapped peripherals. It can also act

as GPIO using the P0 and P0DIR registers.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 5 for external

EPROM and memory mapped peripherals. It can also act

as GPIO using the P0 and P0DIR registers.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 6 for external

EPROM and memory mapped peripherals. It can also act

as GPIO using the P0 and P0DIR registers.

200pF

8mA

Microcontroller Address/Data Pins. This pin is the

multiplexed address and data line bit 7 for external

EPROM and memory mapped peripherals. It can also act

as GPIO using the P0 and P0DIR registers.

200pF

8mA

Microcontroller High Byte Address Lines. This pin is the

address line 10 of a 16 bit address, for external EPROM

and memory mapped devices.

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