OMAP-L138_0908 Datasheet, PDF (29/268 Pages) Texas Instruments – OMAP-L138 Low-Power Applications Processor

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OMAP-L138 Low-Power Applications Processor
SPRS586A – JUNE 2009 – REVISED AUGUST 2009
3.9 Terminal Functions
Table 3-4 to Table 3-29 identify the external signal names, the associated pin/ball numbers along with the
mechanical package designator, the pin type (I, O, IO, OZ, or PWR), whether the pin/ball has any internal
pullup/pulldown resistors, whether the pin/ball is configurable as an IO in GPIO mode, and a functional pin
description.
3.9.1 Device Reset, NMI and JTAG
Table 3-4. Reset, NMI and JTAG Terminal Functions
SIGNAL
NAME
RESET
NMI
RESETOUT / UHPI_HAS/ PRU1_R30[14] /
GP6[15]
TMS
TDI
TDO
TCK
TRST
EMU[0]
EMU[1]
RTCK/ GP8[0]
TYPE⁽¹⁾ PULL⁽²⁾
NO.
RESET
K14
I
IPU
J17
I
IPU
T17
O ⁽⁴⁾
IPD
JTAG
L16
I
IPU
M16
I
IPU
J18
O
IPU
J15
I
IPU
L17
I
IPD
J16
I/O
IPU
K16 I/O
IPU
K17 I/O
IPD
POWER
GROUP ⁽³⁾
DESCRIPTION
B
Device reset input
B
Non-Maskable Interrupt
C
Reset output
B
JTAG test mode select
B
JTAG test data input
B
JTAG test data output
B
JTAG test clock
B
JTAG test reset
B
Emulation pin
B
Emulation pin
B
JTAG Test Clock Return Clock Output
(1) I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note: For multiplexed pins where functions have different types (ie., input versus output), the table reflects the pin function direction for
that particular peripheral.
(2) IPD = Internal Pulldown resistor, IPU = Internal Pullup resistor
(3) This signal is part of a dual-voltage IO group (A, B or C). These groups can be operated at 3.3V or 1.8V nominal. The three groups can
be operated at independent voltages but all pins withina group will operate at the same voltage. Group A operates at the voltage of
power supply DVDD3318_A. Group B operates at the voltage of power supply DVDD3318_B. Group C operates at the voltage of power
supply DVDD3318_C.
(4) Open drain mode for RESETOUT function.
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