ks8701 Samsung Semiconductor, Inc., ks8701 Datasheet - Page 53

• Manufacturer Part Number: ks8701
• Description: Flextm Roaming Decoder Ii
• Manufacturer: Samsung Semiconductor, Inc.

Decoder-to-Host Packet Descriptions
52
c:
SMU: Synchronous Mode Update. Set if the SM bit has been updated in this packet. When the KS8701 is
LBU: Low Battery Update. Set if the value on two consecutive reads of the LOBAT pin yielded different
MT:
EOF: End Of Frame. Set when the KS8701 is in all frames mode and the end of frame has been reached.
EA:
BOE: Buffer Overflow Error. Set when information has been lost due to slow host response time. When the
x:
Minute Time-out. Set if one minute has elapsed. Cleared when read. This bit is initialized to 0 when the
Current system cycle number. This value is updated every frame regardless of whether the KS8701
Unused bits. The value of these bits is not guaranteed.
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.
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 KS8701 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 KS8701 transitions from/to synchronous mode.
Cleared when read. Changes in the SM bit due to turning off the KS8701 will not cause the SMU bit to
be set. This bit is initialized to 0 when the KS8701 is reset.
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 KS8701 will not cause the LBU bit to be set. This
bit is initialized to 0 when the KS8701 is reset.
KS8701 is reset.
The KS8701 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 KS8701 is reset.
set after the KS8701 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 KS8701 is reset.
data packet FIFO transmit buffer on the KS8701 overflows, the KS8701 clears the transmit 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 KS8701 is reset.
End of Addresses. If EAE of the control packet is set and an address is detected in a frame, EA will be
FLEX
TM
Roaming Decoder II
KS8701