Datasheet

RM57L843

SPNS215C –FEBRUARY 2014–REVISED JUNE 2016

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4.2 Terminal Functions

Table 4-1 through Table 4-26 identify the external signal names, the associated terminal numbers along

with the mechanical package designator, the terminal type (Input, Output, I/O, Power, or Ground), whether

the terminal has any internal pullup/pulldown, whether the terminal can be configured as a GIO, and a

functional terminal description. The first signal name listed is the primary function for that terminal. The

signal name in Bold is the function being described. For information on how to select between different

multiplexed functions, see the Section 4.2.2, Multiplexing of this data manual along with the I/O

Multiplexing Module (IOMM) chapter in the Technical Reference Manual (TRM) ( SPNU562).

NOTE

In the Terminal Functions tables below, the "Default Pull State" is the state of the pull applied

to the terminal while nPORRST is low and immediately after nPORRST goes High. The

default pull direction may change when software configures the pin for an alternate function.

The "Pull Type" is the type of pull asserted when the signal name in bold is enabled for the

given terminal by the IOMM control registers.

All I/O signals except nRST are configured as inputs while nPORRST is low and immediately

after nPORRST goes High. While nPORRST is low, the input buffers are disabled, and the

output buffers are disabled with the default pulls enabled.

All output-only signals have the output buffer disabled and the default pull enabled while

nPORRST is low, and are configured as outputs with the pulls disabled immediately after

nPORRST goes High.