21. Serial Communication Interface with FIFO (SCIF)
Rev.1.00 Jan. 10, 2008 Page 1065 of 1658
REJ09B0261-0100
21.3.11 Receive FIFO Data Count Register n (SCRFDR) SCRFDR is a 16-bit register that indicates the number of receive data bytes stored in SCFRDR. SCRFDR can always be read from the CPU.
01234567891011121315 14
0000000000000000
R0R1R2R3R4R5R6⎯⎯⎯⎯⎯⎯⎯⎯⎯
RRRRRRRRRRRRRRRR
BIt:
Initial value:
R/W:
Bit Bit Name
Initial
Value R/W Description
15 to 7 — All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.
6 to 0 R6 to R0 All 0 R These bits show the number of receive data bytes in
SCFRDR. A value of H'00 indicates that there is no
receive data, and a value of H'40 indicates that
SCFRDR is full of receive data.