McASP Registers
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
and described in
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
Copyright © 2011–2013, Texas Instruments Incorporated