AM1705_1004 Datasheet, PDF (26/155 Pages) Texas Instruments – AM1705 ARM Microprocessor

AM1705
SPRS657A – FEBRUARY 2010 – REVISED APRIL 2010
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3.6.15 Ethernet Media Access Controller (EMAC)
Table 3-17. Ethernet Media Access Controller (EMAC) Terminal Functions
SIGNAL NAME
PIN NO
PTP
TYPE ⁽¹⁾
PULL ⁽²⁾
MUXED
DESCRIPTION
RMII
EMAC 50-MHz
AHCLKR0/RMII_MHZ_50_CLK/GP2[14]/BOOT[11]
129
I/O
IPD McASP0, GPIO, BOOT clock input or
output.
AXR0[6]/RMII_RXER/GP3[6]
118
I
IPD
EMAC RMII
receiver error.
AXR0[5]/RMII_RXD[1]/GP3[5]
AXR0[4]/RMII_RXD[0]/GP3[4]
117
I
IPD
116
I
IPD
EMAC RMII
receive data.
AXR0[3]/RMII_CRS_DV/GP3[3]
115
I
IPD McASP0, GPIO
EMAC RMII carrier
sense data valid.
AXR0[2]/RMII_TXEN/GP3[2]
113
O
IPD
EMAC RMII
transmit enable.
AXR0[1]/RMII_TXD[1]/GP3[1]
AXR0[0]/RMII_TXD[0]/GP3[0]
112
O
IPD
111
O
IPD
EMAC RMII trasmit
data.
MDIO
AXR0[8]/MDIO_D/GP3[8]
AXR0[7]/MDIO_CLK/GP3[7]
121
I/O
IPU
McASP0, GPIO
120
O
IPD
MDIO data 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
3.6.16 Multimedia Card/Secure Digital (MMC/SD)
Table 3-18. Multimedia Card/Secure Digital (MMC/SD) Terminal Functions
SIGNAL NAME
PIN
NO
PTP
TYPE ⁽¹⁾
PULL ⁽²⁾
MUXED
DESCRIPTION
EMA_A[1]/MMCSD_CLK/GP1[1]
EMA_A[2]/MMCSD_CMD/GP1[2]
30
O
31
I/O
IPU
EMIFA, GPIO
IPU
MMCSD_CLK.
MMCSD_CMD.
EMA_D[7]/MMCSD_DAT[7]/GP0[7]/BOOT[13]
54
I/O
IPU EMIFA, GPIO, BOOT
EMA_D[6]/MMCSD_DAT[6]/GP0[6]
52
I/O
IPU
EMA_D[5]/MMCSD_DAT[5]/GP0[5]
51
I/O
IPU
EMA_D[4]/MMCSD_DAT[4]/GP0[4]
EMA_D[3]/MMCSD_DAT[3]/GP0[3]
49
I/O
48
I/O
IPU
EMIFA, GPIO
IPU
MMC/SD data.
EMA_D[2]/MMCSD_DAT[2]/GP0[2]
46
I/O
IPU
EMA_D[1]/MMCSD_DAT[1]/GP0[1]
45
I/O
IPU
EMA_D[0]/MMCSD_DAT[0]/GP0[0]/BOOT[12]
44
I/O
IPU EMIFA, GPIO, 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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