TMS320C6421 datasheet(43/59 Pages) TI

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TMS320C6421

Fixed-Point Digital Signal Processor

SPRS346A – JANUARY 2007 – REVISED MARCH 2007

Table 2-25. Standalone GPIO 3.3 V Terminal Functions

SIGNAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

ZWT

ZDU

NAME

NO.

Standalone GPIO 3.3 V

IPD

GP[0]

I/O/Z

This pin functions as standalone GPIO pin 0.

DVDD33

IPD

GP[1]

I/O/Z

This pin functions as standalone GPIO pin 1.

DVDD33

IPD

GP[2]

I/O/Z

This pin functions as standalone GPIO pin 2.

DVDD33

IPD

GP[3]

I/O/Z

This pin functions as standalone GPIO pin 3.

DVDD33

GP[22]/

IPD

F18

J20

I/O/Z

(BOOTMODE0)

DVDD33

GP[23]/

IPD

F15

K20

I/O/Z

(BOOTMODE1)

DVDD33

GP[24]/

IPD

These pins function as boot configuration pins during device reset.

G15

L20

I/O/Z

(BOOTMODE2)

DVDD33

After device reset, these pins function as standalone GPIO.

GP[25]/

IPD

G16

H21

I/O/Z

(BOOTMODE3)

DVDD33

GP[26]/

IPD

G17

K19

I/O/Z

(FASTBOOT)

DVDD33

IPD

GP[36]

C15

B19

I/O/Z

This pin functions as standalone GPIO pin 36.

DVDD33

IPD

GP[37]

B15

B18

I/O/Z

This pin functions as standalone GPIO pin 37.

DVDD33

IPD

GP[38]

C14

B17

I/O/Z

This pin functions as standalone GPIO pin 38.

DVDD33

IPD

GP[39]

B14

A16

I/O/Z

This pin functions as standalone GPIO pin 39.

DVDD33

IPD

GP[40]

D14

C18

I/O/Z

This pin functions as standalone GPIO pin 40.

DVDD33

IPD

GP[41]

C13

B16

I/O/Z

This pin functions as standalone GPIO pin 41.

DVDD33

IPD

GP[42]

B13

B15

I/O/Z

This pin functions as standalone GPIO pin 42.

DVDD33

IPD

GP[43]

A12

A15

I/O/Z

This pin functions as standalone GPIO pin 43.

DVDD33

IPD

GP[53]

A13

A17

I/O/Z

This pin functions as standalone GPIO pin 53.

DVDD33

IPD

GP[54]

A14

A18

I/O/Z

This pin functions as standalone GPIO pin 54.

DVDD33

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal

(2)

IPD = Internal pulldown, IPU = Internal pullup. For more detailed information on pullup/pulldown resistors and situations where external

pullup/pulldown resistors are required, see Section 3.2.1, Pullup/Pulldown Resistors.

(3)

Specifies the operating I/O supply voltage for each signal

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TMS320C6421 数据表(PDF) 43 Page - Texas Instruments

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TMS320C6421 数据表(PDF) 43 Page - Texas Instruments

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