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collapse). This bit is initialized to 0 when the FLEX decoder is reset and when it is turned off by
clearing the ON bit in the Control Packet.
LB: Low Battery. Set to the value last read from the LOBAT pin. The host controls when the
LOBAT pin is read via the Receiver Control Packets. This bit is initialized to 0 at reset. It is also
initialized to the inverse of the LBP bit in the Configuration Packet when the FLEX decoder is
turned on by setting the ON bit in the Control Packet.
c: Current system cycle number. This value is updated every frame regardless of whether the
FLEX decoder needs to decode the frame.This value will change to its proper value for a frame at
the end of block 0 of the frame. The value of these bits is not guaranteed when FIV is 0.
SMU: Synchronous Mode Update. Set if the SM bit has been updated in this packet. When the
FLEX decoder is turned on, this bit will be set when the first synchronization words are found
(SM changes to 1) or when the first synchronization search window after the FLEX decoder is
turned on expires (SM stays 0). The latter condition gives the host the option of assuming the
paging device is in range when it is turned on, and displaying out-of-range only after the initial A
search window expires. After the initial synchronous mode update, the SMU bit will be set
whenever the FLEX decoder transitions from/to synchronous mode. Cleared when read. Changes
in the SM bit due to turning off the FLEX decoder will not cause the SMU bit to be set. This bit is
initialized to 0 when the FLEX decoder is reset.
LBU: Low Battery Update. Set if the value on two consecutive reads of the LOBAT pin yielded
different results. Cleared when read. The host controls when the LOBAT pin is read via the
Receiver Control Packets. Changes in the LB bit due to turning on the FLEX decoder will not
cause the LBU bit to be set. This bit is initialized to 0 when the FLEX decoder is reset.
MT: Minute Time-out. Set if one minute has elapsed. Cleared when read. This bit is initialized to
0 when the FLEX decoder is reset.
EOF: End Of Frame. Set when the FLEX decoder is in all frames mode and the end of frame has
been reached. The FLEX decoder is in all frames mode if the all frames mode enable counter is
non-zero, if any temporary address enabled counter is non-zero, or if the FAF bit in the All Frame
Mode Packet is set. Cleared when read. This bit is initialized to 0 when the FLEX decoder is reset.
EA: End of Addresses. If EAE of the control packet is set and an address is detected in a frame,
EA will be set after the FLEX decoder processes the last address in the frame. Since data packets
take priority over the status packet, the status packet with the EA bit set is guaranteed to come
after all address packets for the frame. Cleared when read. This bit is initialized to 0 when the
FLEX decoder is reset.
BOE: Buffer Overflow Error. Set when information has been lost due to slow host response time.
When the data packet FIFO transmit buffer on the FLEX decoder overflows, the FLEX decoder
clears the buffer, turns off decoding by clearing the ON bit in the Control Packet, and sets this bit.
Cleared when read. This bit is initialized to 0 when the FLEX decoder is reset.
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