AM1707_15 Datasheet, PDF (23/200 Pages) Texas Instruments – AM1707 ARM® Microprocessor

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AM1707
SPRS637E – FEBRUARY 2010 – REVISED JUNE 2014
3.6.11 Universal Asynchronous Receiver/Transmitters (UART0, UART1, UART2)
Table 3-13. Universal Asynchronous Receiver/Transmitter (UART) Terminal Functions
SIGNAL NAME
PIN
No.
ZKB
TYPE ⁽¹⁾
PULL ⁽²⁾
MUXED
DESCRIPTION
UART0
UART0_RXD/I2C0_SDA/TM64P0_IN12/GP5[8]/BOOT[8]
R3
I
IPU
I2C0, BOOT,
Timer0, GPIO,
UART0 receive data
UART0_TXD/I2C0_SCL/TM64P0_OUT12/GP5[9]/BOOT[9]
P3
O
IPU
I2C0, Timer0, GPIO, UART0 transmit
BOOT
data
SPI0_SCS[0]/ UART0_RTS /EQEP0B/GP5[4]/BOOT[4]
SPI0_ENA/ UART0_CTS /EQEP0A/GP5[3]/BOOT[3]
N4
O
R5
I
IPU
SPIO, eQEP0,
GPIO, BOOT
IPU
UART0 ready-to-
send output
UART0 clear-to-
send input
UART1_RXD/AXR0[9]/GP3[9] ⁽³⁾
UART1_TXD/AXR0[10]/GP3[10] ⁽³⁾
UART1
C6
I
D6
O
IPD
McASP0, GPIO
IPD
UART1 receive data
UART1 transmit
data
UART2
SPI1_ENA/UART2_RXD/GP5[12]
SPI1_SCS[0]/UART2_TXD/GP5[13]
R4
I
P4
O
IPU
SPI1, GPIO
IPU
UART2 receive data
UART2 transmit
data
(1) I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note: The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the the signal name
highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured
function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different
types (i.e., input versus output), the table reflects the pin function direction for that particular peripheral.
(2) IPD = Internal Pulldown resistor, IPU = Internal Pullup resistor
(3) As these signals are internally pulled down while the device is in reset, it is necessary to externally pull them high with resistors if
UART1 boot mode is used.
3.6.12 Inter-Integrated Circuit Modules (I2C0, I2C1)
Table 3-14. Inter-Integrated Circuit (I2C) Terminal Functions
SIGNAL NAME
PIN
No.
ZKB
TYPE ⁽¹⁾
PULL ⁽²⁾
MUXED
DESCRIPTION
I2C0
UART0_RXD/I2C0_SDA/TM64P0_IN12/GP5[8]/BOOT[8]
R3
I/O
IPU
UART0, Timer0,
GPIO, BOOT
I2C0 serial data
UART0_TXD/I2C0_SCL/TM64P0_OUT12/GP5[9]/BOOT[9]
P3
I/O
IPU
UART0, Timer0,
GPIO, BOOT
I2C0 serial clock
I2C1
SPI1_SIMO[0]/I2C1_SDA/GP5[6]/BOOT[6]
SPI1_SOMI[0]/I2C1_SCL/GP5[5]/BOOT[5]
N5
I/O
P5
I/O
IPU
I2C1 serial data
SPI1, GPIO, BOOT
IPU
I2C1 serial clock
(1) I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note: The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the the signal name
highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured
function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different
types (i.e., 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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