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McASP Registers
22.4.1.14 Receive Format Unit Bit Mask Register (RMASK)
The receive format unit bit mask register (RMASK) determines which bits of the received data are masked
off and padded with a known value before being read by the CPU or DMA. The RMASK is shown in
Figure 22-52 and described in Table 22-25.
Figure 22-52. Receive Format Unit Bit Mask Register (RMASK)
31 0
RMASK[n]
R/W-0
LEGEND: R/W = Read/Write; -n = value after reset
Table 22-25. Receive Format Unit Bit Mask Register (RMASK) Field Descriptions
Bit Field Value Description
31-0 RMASK[31-0] Receive data mask n enable bit.
0 Corresponding bit of receive data (after passing through reverse and rotate units) is masked out
and then padded with the selected bit pad value (RPAD and RPBIT bits in RFMT).
1 Corresponding bit of receive data (after passing through reverse and rotate units) is returned to
CPU or DMA.
3849
SPRUH73H–October 2011–Revised April 2013 Multichannel Audio Serial Port (McASP)
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