Datasheet
TMS320F28030, TMS320F28031, TMS320F28032
TMS320F28033, TMS320F28034, TMS320F28035
www.ti.com
SPRS584J –APRIL 2009–REVISED OCTOBER 2013
Table 2-2. Terminal Functions
(1)
(continued)
TERMINAL
I/O/Z DESCRIPTION
PN PAG RSH
NAME
PIN # PIN # PIN #
GPIO18 41 33 29 I/O/Z General-purpose input/output 18
SPICLKA I/O SPI-A clock input/output
LINTXA O LIN transmit
XCLKOUT O/Z Output clock derived from SYSCLKOUT. XCLKOUT is either the same frequency,
one-half the frequency, or one-fourth the frequency of SYSCLKOUT. This is
controlled by bits 1:0 (XCLKOUTDIV) in the XCLK register. At reset, XCLKOUT =
SYSCLKOUT/4. The XCLKOUT signal can be turned off by setting XCLKOUTDIV
to 3. The mux control for GPIO18 must also be set to XCLKOUT for this signal to
propogate to the pin.
GPIO19 55 44 39 I/O/Z General-purpose input/output 19
XCLKIN External Oscillator Input. The path from this pin to the clock block is not gated by
the mux function of this pin. Care must be taken not to enable this path for
clocking if it is being used for the other periperhal functions
SPISTEA I/O SPI-A slave transmit enable input/output
LINRXA I LIN receive
ECAP1 I/O Enhanced Capture input/output 1
GPIO20 78 62 55 I/O/Z General-purpose input/output 20
EQEP1A I Enhanced QEP1 input A
– –
COMP1OUT O Direct output of Comparator 1
GPIO21 79 63 56 I/O/Z General-purpose input/output 21
EQEP1B I Enhanced QEP1 input B
– –
COMP2OUT O Direct output of Comparator 2
GPIO22 1 1 1 I/O/Z General-purpose input/output 22
EQEP1S I/O Enhanced QEP1 strobe
– –
LINTXA O LIN transmit
GPIO23 4 4 2 I/O/Z General-purpose input/output 23
EQEP1I I/O Enhanced QEP1 index
– –
LINRXA I LIN receive
GPIO24 80 64 – I/O/Z General-purpose input/output 24
See
GPIO5
ECAP1 I/O Enhanced Capture input/output 1
and
GPIO19
– –
SPI-B slave in, master out.
SPISIMOB I/O
NOTE: SPI-B is only available in the PN and RSH packages.
GPIO25 44 – – I/O/Z General-purpose input/output 25
– –
– –
SPISOMIB I/O SPI-B slave out , master in
Copyright © 2009–2013, Texas Instruments Incorporated Introduction 19
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