TMS320VC5504 datasheet(29/128 Pages) TI

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TMS320VC5504

Fixed-Point Digital Signal Processor

www.ti.com

SPRS609A – JUNE 2009 – REVISED JULY 2009

Table 3-11. Serial Peripheral Interface (SPI) Terminal Functions

SIGNAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

NAME

NO.

Serial Port Interface (SPI)

SPI_CS0

I/O/Z

DVDDIO

For SPI, this pin is SPI chip select SPI_CS0.

This pin is multiplexed between I2S2, GPIO, and SPI.

I2S2_FS/

IPD

Mux control via the PPMODE bits in the EBSR.

GP[19]/

P11

I/O/Z

DVDDIO

For SPI, this pin is SPI chip select SPI_CS0.

SPI_CS0

The IPD resistor on this pin can be enabled or disabled via the PDINHIBR3 register.

SPI_CS1

I/O/Z

DVDDIO

For SPI, this pin is SPI chip select SPI_CS1.

SPI_CS2

I/O/Z

DVDDIO

For SPI, this pin is SPI chip select SPI_CS2.

SPI_CS3

I/O/Z

DVDDIO

For SPI, this pin is SPI chip select SPI_CS3.

SPI_CLK

O/Z

DVDDIO

For SPI, this pin is clock output SPI_CLK.

This pin is multiplexed between I2S2, GPIO, and SPI.

I2S2_CLK/

IPD

Mux control via the PPMODE bits in the EBSR.

GP[18]/

N10

DVDDIO

For SPI, this pin is clock output SPI_CLK.

SPI_CLK

The IPD resistor on this pin can be enabled or disabled via the PDINHIBR3 register.

SPI_TX

I/O/Z

DVDDIO

For SPI, this pin is SPI transmit data output.

This pin is multiplexed between I2S2, GPIO, and SPI.

I2S2_DX/

IPD

Mux control via the PPMODE bits in the EBSR.

GP[27]/

P12

I/O/Z

DVDDIO

For SPI, this pin is SPI transmit data output.

SPI_TX

The IPD resistor on this pin can be enabled or disabled via the PDINHIBR3 register.

SPI_RX

I/O/Z

DVDDIO

For SPI this pin is SPI receive data input.

This pin is multiplexed between I2S2, GPIO, and SPI.

I2S2_RX/

IPD

Mux control via the PPMODE bits in the EBSR.

GP[20]/

N11

I/O/Z

DVDDIO

For SPI this pin is SPI receive data input.

SPI_RX

The IPD resistor on this pin can be enabled or disabled via the PDINHIBR3 register.

(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 4.8.1, Pullup/Pulldown Resistors.

(3)

Specifies the operating I/O supply voltage for each signal

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