AM1705 Datasheet, PDF (24/155 Pages) Texas Instruments – AM1705 ARM Microprocessor

AM1705
SPRS657 – FEBRUARY 2010
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3.6.13 Multichannel Audio Serial Ports (McASP0, McASP1)
Table 3-15. Multichannel Audio Serial Ports (McASPs) Terminal Functions
SIGNAL NAME
PIN NO
PTP
TYPE ⁽¹⁾
PULL ⁽²⁾
MUXED
DESCRIPTION
McASP0
EMA_OE/AXR0[13]/GP2[7]
22
I/O
IPU EMIFA, GPIO
EMA_WE/AXR0[12]/GP2[3]/BOOT[14]
55
I/O
IPU
EMIFA, GPIO,
BOOT
AXR0[11]/ AXR2[0]/GP3[11]
124
I/O
IPD
McASP2,
GPIO
UART1_TXD/AXR0[10]/GP3[10]
123
I/O
IPD GPIO
UART1_RXD/AXR0[9]/GP3[9]
122
I/O
IPD GPIO
AXR0[8]/MDIO_D/GP3[8]
AXR0[7]/MDIO_CLK/GP3[7]
AXR0[6]/RMII_RXER/GP3[6]
121
I/O
IPU
MDIO, GPIO McASP0 serial
120
I/O
IPD
data.
118
I/O
IPD
AXR0[5]/RMII_RXD[1]/GP3[5]
117
I/O
IPD
AXR0[4]/RMII_RXD[0]/GP3[4]
116
I/O
IPD
AXR0[3]/RMII_CRS_DV/GP3[3]
115
I/O
IPD EMAC, GPIO
AXR0[2]/RMII_TXEN/GP3[2]
113
I/O
IPD
AXR0[1]/RMII_TXD[1]/GP3[1]
112
I/O
IPD
AXR0[0]/RMII_TXD[0]/GP3[0]
111
I/O
IPD
AHCLKX0/AHCLKX2/USB_REFCLKIN/GP2[11]
McASP0
125
I/O
IPD USB, GPIO transmit master
clock.
ACLKX0/ECAP0/APWM0/GP2[12]
McASP0
126
I/O
IPD eCAP0, GPIO transmit bit
clock.
AFSX0/GP2[13]/BOOT[10]
McASP0
127
I/O
IPD GPIO, BOOT transmit frame
sync.
AHCLKR0/RMII_MHZ_50_CLK/GP2[14]/BOOT[11]
129
I/O
IPD
EMAC, GPIO, McASP0 receive
BOOT
master clock.
ACLKR0/ECAP1/APWM1/GP2[15]
130
I/O
IPD
eCAP1, GPIO
McASP0 receive
bit clock.
AFSR0/GP3[12]
131
I/O
IPD GPIO
McASP0 receive
frame sync.
(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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