AM5728 datasheet(128/415 Pages) TI

128 / 415 page

AM5728, AM5726

SPRS915O – MARCH 2014 – REVISED OCTOBER 2015

www.ti.com

Table 4-13. SPI Signal Descriptions (continued)

SIGNAL NAME

DESCRIPTION

TYPE

BALL

spi4_cs0

SPI4 Chip Select I/O

P9/ F3/ AA4/ U6/

AB5

spi4_cs1

SPI4 Chip Select I/O

P4/ Y1

spi4_cs2

SPI4 Chip Select I/O

R3/ W9

spi4_cs3

SPI4 Chip Select I/O

T2/ V9

(1) This clock signal is implemented as 'pad loopback' inside the device - the output signal is looped back through the input buffer to serve

as the internal reference signal. Series termination is recommended (as close to device pin as possible) to improve signal integrity of the

clock input. Any nonmonotonicity in voltage that occurs at the pad loopback clock pin between VIH and VIL must be less than VHYS.

4.4.11 Quad Serial Peripheral Interface (QSPI)

NOTE

For more information see the Serial Communication Interface / Quad Serial Peripheral

Interface section of the device TRM.

Table 4-14. QSPI Signal Descriptions

SIGNAL NAME

DESCRIPTION

TYPE

BALL

qspi1_sclk

QSPI1 Serial Clock Output

qspi1_rtclk

QSPI1 Return Clock Input. Must be connected from QSPI1_SCLK on PCB. Refer

to PCB Guidelines for QSPI1.

qspi1_d0

QSPI1 Data[0]. This pin is output data for all commands/writes and for dual read

and quad read modes it becomes input data pin during read phase.

qspi1_d1

QSPI1 Data[1]. Input read data in all modes.

qspi1_d2

QSPI1 Data[2]. This pin is used only in quad read mode as input data pin during

read phase

qspi1_d3

QSPI1 Data[3]. This pin is used only in quad read mode as input data pin during

read phase

qspi1_cs0

QSPI1 Chip Select[0]. This pin is Used for QSPI1 boot modes.

qspi1_cs1

QSPI1 Chip Select[1]

qspi1_cs2

QSPI1 Chip Select[2]

qspi1_cs3

QSPI1 Chip Select[3]

4.4.12 Multichannel Audio Serial Port (MCASP)

NOTE

For more information, see the Serial Communication Interface / Multichannel Audio Serial

Port (MCASP) section of the device TRM.

Table 4-15. McASP Signal Descriptions

SIGNAL NAME

DESCRIPTION

TYPE

BALL

Multichannel Audio Serial Port 1

mcasp1_axr0