McASP Registers
22.4.1.6 Pin Data Input Register (PDIN)
The pin data input register (PDIN) holds the I/O pin state of each of the McASP pins. PDIN allows the
actual value of the pin to be read, regardless of the state of PFUNC and PDIR. The value after reset for
registers 1 through 15 and 24 through 31 depends on how the pins are being driven. The PDIN 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 22-44. Pin Data Input Register (PDIN)
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
3836
Multichannel Audio Serial Port (McASP)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated