AM1707_1008 Datasheet, PDF (16/199 Pages) Texas Instruments – ARM Microprocessor

AM1707
SPRS637A – FEBRUARY 2010 – REVISED APRIL 2010
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3.6 Terminal Functions
Table 3-3 to Table 3-23 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.
3.6.1 Device Reset and JTAG
Table 3-3. Reset and JTAG Terminal Functions
SIGNAL NAME
PIN No.
ZKB
TYPE ⁽¹⁾
PULL ⁽²⁾
DESCRIPTION
RESET
RESET
AMUTE0/ RESETOUT
G3
I
L4
O ⁽³⁾
Device reset input
IPD
Reset output. Multiplexed with McASP0 mute output.
JTAG
TMS
J1
I
IPU
JTAG test mode select
TDI
J2
I
IPU
JTAG test data input
TDO
J3
O
IPD
JTAG test data output
TCK
H3
I
IPD
JTAG test clock
TRST
J4
I
IPD
JTAG test reset
EMU[0]/GP7[15]
J5
I/O
IPU
Emulation Signal
RTCK/GP7[14]
K1
I/O
IPD
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) Open drain mode for RESETOUT function.
3.6.2 High-Frequency Oscillator and PLL
Table 3-4. High-Frequency Oscillator and PLL Terminal Functions
SIGNAL NAME
PIN No.
ZKB
TYPE ⁽¹⁾
PULL ⁽²⁾
DESCRIPTION
EMA_CLK/OBSCLK/AHCLKR2/
GP1[15]
R12
O
IPU
PLL Observation Clock
1.2-V OSCILLATOR
OSCIN
F2
I
Oscillator input
OSCOUT
F1
O
Oscillator output
OSCVSS
E2
GND
Oscillator ground (for filter only)
1.2-V PLL
PLL0_VDDA
PLL0_VSSA
D1
PWR
E1
GND
PLL analog V_DD (1.2-V filtered supply)
PLL analog V_SS (for filter)
(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
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