AM1810 Datasheet, PDF (26/259 Pages) Texas Instruments – AM1810 ARM Microprocessor For PROFIBUS

AM1810
SPRS709B – NOVEMBER 2010 – REVISED DECEMBER 2011
www.ti.com
2.7.8 Profibus Real-Time Unit (PRU)
Table 2-10. Profibus Real-Time Unit (PRU) Terminal Functions
SIGNAL
NAME
NO.
PRU0 Signals
PRU0_R30[31] / UHPI_HRDY / PRU1_R30[12] / GP6[13]
R17
PRU0_R30[30] / UHPI_HINT / PRU1_R30[11] / GP6[12]
R16
PRU0_R30[29] / UHPI_HCNTL0 / UPP_CHA_CLOCK / GP6[11]
U17
PRU0_R30[28] / UHPI_HCNTL1 / UPP_CHA_START / GP6[10]
W15
PRU0_R30[27] / UHPI_HHWIL / UPP_CHA_ENABLE / GP6[9]
U16
PRU0_R30[26] / UHPI_HRW / / UPP_CHA_WAITGP6[8] / PRU1_R31[17] T15
PRU0_R30[25] / MMCSD1_DAT[0] / UPP_CHB_CLOCK / GP8[15] /
PRU1_R31[27]
G1
PRU0_R30[24] / MMCSD1_CLK / UPP_CHB_START / GP8[14] /
PRU1_R31[26]
G2
PRU0_R30[23] / MMCSD1_CMD / UPP_CHB_ENABLE / GP8[13] /
PRU1_R31[25]
J4
PRU0_R30[22] / PRU1_R30[8] / UPP_CHB_WAIT / GP8[12] /
PRU1_R31[24]
G3
EMA_A[13] / PRU0_R30[21] / PRU1_R30[21] / GP5[13] / PRU1_R31[21] D11
ACLKR / PRU0_R30[20] / GP0[15] / PRU0_R31[22]
A1
ACLKX / PRU0_R30[19] / GP0[14] / PRU0_R31[21]
B1
AHCLKR / PRU0_R30[18] / UART1_RTS / GP0[11] / PRU0_R31[18]
A2
AXR7 / EPWM1TZ[0] / PRU0_R30[17] / GP1[15] / PRU0_R31[7]
D2
AMUTE / PRU0_R30[16] / UART2_RTS / GP0[9] / PRU0_R31[16]
D5
VP_DIN[15]_VSYNC / UHPI_HD[7] / UPP_D[7] / PRU0_R30[15] /
PRU0_R31[15]
V18
VP_DIN[14]_HSYNC / UHPI_HD[6] / UPP_D[6] / PRU0_R30[14] /
PRU0_R31[14]
V19
VP_DIN[13]_FIELD / UHPI_HD[5] / UPP_D[5] / PRU0_R30[13] /
PRU0_R31[13]
U19
VP_DIN[12] / UHPI_HD[4] / UPP_D[4] / PRU0_R30[12] / PRU0_R31[12] T16
VP_DIN[11] / UHPI_HD[3] / UPP_D[3] / PRU0_R30[11] / PRU0_R31[11] R18
VP_DIN[10] / UHPI_HD[2] / UPP_D[2] / PRU0_R30[10] / PRU0_R31[10] R19
VP_DIN[9] / UHPI_HD[1] / UPP_D[1] / PRU0_R30[9] / PRU0_R31[9]
R15
SPI1_SCS[1] / EPWM1A / PRU0_R30[8] / GP2[15] / TM64P2_IN12
F18
SPI1_SCS[0] / EPWM1B / PRU0_R30[7] / GP2[14] / TM64P3_IN12
E19
SPI0_ENA / EPWM0B / PRU0_R30[6] / MII_RXDV
C17
TYPE ⁽¹⁾
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
PULL ⁽²⁾
CP[23]
CP[23]
CP[24]
CP[24]
CP[24]
CP[24]
CP30]
CP[30]
CP[30]
CP[30]
CP[19]
CP[0]
CP[0]
CP[0]
CP[4]
CP[0]
CP[27]
CP[27]
CP[27]
CP[27]
CP[27]
CP[27]
CP[27]
CP[14]
CP[14]
CP[7]
POWER
GROUP ⁽³⁾
DESCRIPTION
C
C
C
C
C
C
C
C
C
C
B
A
A
PRU0 Output
Signals
A
A
A
C
C
C
C
C
C
C
A
A
A
(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 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 (ie., input versus output), the table reflects the pin function direction for that particular peripheral.
(2) IPD = Internal Pulldown resistor; IPU = Internal Pullup resistor; CP[n] = configurable pull-up/pull-down (where n is the pin group) using
the PUPDENA and PUPDSEL registers in the System Module. The pull-up and pull-down control of these pins is not active until the
device is out of reset. During reset, all of the pins associated with these registers are pulled down. If the application requires a pull-up,
an external pull-up can be used. For electrical specifications on the pull-up and and internal pull-down circuits, see the Device Operating
Conditions section.
(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.
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