PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 172

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

LA…
Receive Byte Count Low (Read)
RBCL
Received Byte Count High (Read)
Value after RESET: 000
RBCH
OV…
RBC11 – RBC8…Receive Byte Count (most significant bits)
Semiconductor Group
7
7
RBC7
Low Byte Address Compare
Significant in HDLC modes only.
The low byte address of a 2-byte address field, or the single address
byte of a 1-byte address field is compared with two registers. (RAL1,
RAL2).
Together with RBCH (bits RBC11 - RBC8), indicates the length of a
received frame (1…4095 bytes). Bits RBC4-0 indicate the number of
valid bytes currently in RFIFO. These registers must be read by the
CPU following a RME interrupt.
Counter Overflow
More than 4095 bytes received.
Together with RBCL (bits RBC7…RBC0) indicate the length of the
received frame.
0… RAL2 has been recognized
1… RAL1 has been recognized
xxxxx
OV
172
RBC11
Operational Description E1
0
0
RBC0
RBC8
PEB 22554
(x66)
(x67)
09.98