HD6433937 Datasheet, PDF (380/521 Pages) Hitachi Semiconductor – Hardware Manual

n: Network bit value. When NBU is set, this is the value of the n bit in the last received frame
information word.
NDR: Noise Detect Result. These bits indicate the result of a noise detect. The results of noise
detects initiated by setting the SND bit in the roaming control packet will always be reported. The
results of the automatic noise detects performed in asynchronous mode will only be reported if the
RND bit is set in the roaming control packet. When continuous noise detects during block data are
enabled by setting the CND bit in the roaming control packet, only the “No FLEX signal detected”
result will be reported. These bits are cleared when read.
NDR
00
01
10
11
Noise Detect Result
No Information
Noise Detect was abandoned
FLEX signal detected
FLEX signal not detected
SCU: System Collapse Update. Set when the FLEX decoder is configured for manual collapse
mode by setting the MCM bit in the roaming control packet and the system collapse of a frame is
received. This bit is set no more than once per frame regardless of the number of phases in the
frame. This bit will not be set in frames in which no block information word ones is received
properly. This bit is cleared when read.
RSC: Received System Collapse. When SCU is set, this value represents the system collapse
value that was received in the frame.
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