AM1707 datasheet(31/199 Pages) TI

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AM1707

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SPRS637A – FEBRUARY 2010 – REVISED APRIL 2010

3.6.17 Ethernet Media Access Controller (EMAC)

Table 3-19. Ethernet Media Access Controller (EMAC) Terminal Functions

No.

SIGNAL NAME

TYPE(1)

PULL(2)

MUXED

DESCRIPTION

ZKB

RMII

EMAC 50-MHz

AHCLKR0/RMII_MHZ_50_CLK/GP2[14]/BOOT[11]

I/O

IPD

McASP0, GPIO, BOOT

clock input or

output.

EMAC RMII receiver

AXR0[6]/RMII_RXER/ACLKR2/GP3[6]

IPD

error.

AXR0[5]/RMII_RXD[1]/AFSX2/GP3[5]

IPD

EMAC RMII receive

data.

AXR0[4]/RMII_RXD[0]/AXR2[1]/GP3[4]

IPD

EMAC RMII carrier

AXR0[3]/RMII_CRS_DV/AXR2[2]/GP3[3]

IPD

McASP0, McASP2, GPIO

sense data valid.

EMAC RMII transmit

AXR0[2]/RMII_TXEN/AXR2[3]/GP3[2]

IPD

enable.

AXR0[1]/RMII_TXD[1]/ACLKX2/GP3[1]

IPD

EMAC RMII trasmit

data.

AXR0[0]/RMII_TXD[0]/AFSR2/GP3[0]

IPD

MDIO

AXR0[8]/MDIO_D/GP3[8]

I/O

IPU

MDIO serial data.

McASP0, GPIO

AXR0[7]/MDIO_CLK/GP3[7]

IPD

MDIO 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 (ie., input versus output), the table reflects the pin function direction for that particular peripheral.

(2)

IPD = Internal Pulldown resistor, IPU = Internal Pullup resistor

3.6.18 Multimedia Card/Secure Digital (MMC/SD)

Table 3-20. Multimedia Card/Secure Digital (MMC/SD) Terminal Functions

No.

SIGNAL NAME

TYPE(1)

PULL(2)

MUXED

DESCRIPTION

ZKB

EMA_A[1]/MMCSD_CLK/UHPI_HCNTL0/GP1[1]

IPU

MMCSD Clock.

EMIFA, UHPI, GPIO

EMA_A[2]/MMCSD_CMD/UHPI_HCNTL1/GP1[2]

I/O

IPU

MMCSD Command.

EMIFA, UHPI, GPIO,

EMA_D[7]/MMCSD_DAT[7]/UHPI_HD[7]/GP0[7]/BOOT[13]

M15

I/O

IPU

BOOT

EMA_D[6]/MMCSD_DAT[6]/UHPI_HD[6]/GP0[6]

N13

I/O

IPU

EMA_D[5]/MMCSD_DAT[5]/UHPI_HD[5]/GP0[5]

N15

I/O

IPU

EMA_D[4]/MMCSD_DAT[4]/UHPI_HD[4]/GP0[4]

P13

I/O

IPU

EMIFA, UHPI, GPIO

MMC/SD data.

EMA_D[3]/MMCSD_DAT[3]/UHPI_HD[3]/GP0[3]

P15

I/O

IPU

EMA_D[2]/MMCSD_DAT[2]/UHPI_HD[2]/GP0[2]

R13

I/O

IPU

EMA_D[1]/MMCSD_DAT[1]/UHPI_HD[1]/GP0[1]

R15

I/O

IPU

EMIFA, UHPI, GPIO,

EMA_D[0]/MMCSD_DAT[0]/UHPI_HD[0]/GP0[0]/BOOT[12]

T13

I/O

IPU

BOOT

(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 (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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