Functional Description
9-12 ADSP-214xx SHARC Processor Hardware Reference
ustat2=dm(DAI_PIN_STAT);
bit tst ustat2 DAI_PB10;
if TF jump DAI_PB10_high;
Unused DAI/DPI Pins
If a DAI/DPI pin is not being used, its pin enable (for example
DAI_PBENxx_I) and its input (DAI_PBxx_I) for its pin buffer should be con-
nected to low.
Miscellaneous Buffers
The miscellaneous buffers (Figure 9-7) are used to interconnect signals
from different routing groups. These buffers have the following
characteristics.
1. Only for internal connections, no pin buffer enable required.
2.
MISCxx_O output always feeds DAI/DPI interrupt latch register and
group F (DAI) and group C (DPI) to route to any DAI/DPI
PBEN_I signal.
Figure 9-7. Miscellaneous Buffer
IN
OUT
MISCxx_I
MISC.
BUFFER
OUTPUT TO ANY
DAI/DPI PBEN_I
INPUT
MISCxx_O
DAI/DPI
INTERRUPT
INVERSION
(Optional)
EXOR
(INVERTER)
To Next Page
Loading...
Need help?
General
