Part I: PCM-049/phyCORE-OMAP44xx System on Module
phyCORE-OMAP44xx
56
©
PHYTEC Messtechnik GmbH
2012
L-760e_1
1.8.9 Multichannel Audio Serial Port (McASP)
The multichannel audio serial port (McASP) interface of the phyCORE-OMAP44xx is a general audio serial port
optimized for the requirements of various audio applications. The McASP is useful for intercomponent digital
audio interface transmission (DIT). It has the flexibility to gluelessly connect to a Sony/Philips digital interface
(S/PDIF) transmit physical layer component. The McASP module operates in transmit mode only; it has no
receive capabilities.
Pin #
Signal
I/O
SL
Description
X1A35
X_McASP_AXR
O
VCC_1V8_IO
ABE McASP serial data IO
X1A36
X_McASP_AFSX
O
VCC_1V8_IO
ABE McASP frame synchro-
nization transmit
X1B37
X_McASP_AHCLKX
O
VCC_1V8_IO
ABE McASP high frequency
clock output
X1B38
X_McASP_AMUTE
O
VCC_1V8_IO
ABE McASP auto mute
output
X1A39
X_McASP_AMUTEIN
I
1.8 V
ABE McASP auto mute input
X1A41
X_McASP_ACLKX
O
VCC_1V8_IO
ABE McASP clock transmit
Table 26:
Multichannel Audio Serial Port (McASP) Signal Location