14.3. SSP signals on pads

The signals connected to pads are listed in Table 14.1.

Table 14.1. Pad signal descriptions

Name

Type

Description

SSPFSSOUT

Output

PrimeCell SSP frame, or slave select output (master).

SSPCLKOUT

Output

PrimeCell SSP clock output (master).

SSPRXD

Input

PrimeCell SSP receive data input.

SSPTXD

Output

PrimeCell SSP transmit data output.

nSSPCTLOE

Output

Output enable signal (active LOW) for SSPCLKOUT output from the PrimeCell SSP. This output is cleared when the device is in master mode and set when the device is in slave mode.

SSPFSSIN

Input

PrimeCell SSP frame input (slave).

SSPCLKIN

Input

PrimeCell SSP clock input (slave).

nSSPOE

Output

Output enable signal (active LOW) to indicate when SSPTXD is valid.

SSPCLKEXT

InputExternal clock reference for peripheral. This signal can be selected instead of the internal clock reference.
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