McASP Registers
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22.4.1.3 Pin Function Register (PFUNC)
The pin function register (PFUNC) specifies the function of AXRn, ACLKX, AHCLKX, AFSX, ACLKR,
AHCLKR, and AFSR pins as either a McASP pin or a general-purpose input/output (GPIO) pin. The
PFUNC is shown in Figure 22-41 and described in Table 22-14.
CAUTION
Writing to Reserved Bits
Writing a value other than 0 to reserved bits in this register may cause improper
device operation.
Figure 22-41. Pin Function Register (PFUNC)
31 30 29 28 27 26 25 24
AFSR AHCLKR ACLKR AFSX AHCLKX ACLKX AMUTE Reserved
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R-0
23 8
Reserved
R-0
7 6 5 4 3 2 1 0
Reserved AXR5 AXR4 AXR3 AXR2 AXR1 AXR0
R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
3830
Multichannel Audio Serial Port (McASP) SPRUH73H–October 2011–Revised April 2013
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