AM1705 Datasheet, PDF (16/155 Pages) Texas Instruments – AM1705 ARM Microprocessor

AM1705
SPRS657 – FEBRUARY 2010
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3.6 Terminal Functions
to 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
PTP
TYPE ⁽¹⁾
PULL ⁽²⁾
DESCRIPTION
RESET
RESET
146
I
Device reset input
JTAG
TMS
152
I
IPU JTAG test mode select
TDI
153
I
IPU JTAG test data input
TDO
156
O
IPD JTAG test data output
TCK
155
I
IPU JTAG test clock
TRST
150
I
IPD JTAG test reset
EMU[0]/GP7[15]
-
I/O
IPU Emulation Signal
(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
3.6.2 High-Frequency Oscillator and PLL
Table 3-4. High-Frequency Oscillator and PLL Terminal Functions
SIGNAL NAME
PIN NO
PTP
TYPE ⁽¹⁾
PULL ⁽²⁾
DESCRIPTION
1.2-V OSCILLATOR
OSCIN
143
I
Oscillator input
OSCOUT
145
O
Oscillator output
OSCVSS
144
GND
Oscillator ground (for filter only)
1.2-V PLL
PLL0_VDDA
PLL0_VSSA
141
PWR
142
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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