Datasheet

Section 20 Serial Communication Interface 3 (SCI3, IrDA)
REJ09B0465-0300 Rev. 3.00 Page 695 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
20.2.9 Sampling Mode Register (SPMR)
Address:
Bit:
Value after reset:
b7
⎯
1
b6
⎯
1
b5
⎯
1
b4
⎯
1
b3
⎯
1
b2
NFEN
0
b1
⎯
1
b0
⎯
1
H'FF0556, H'FF055E, H'FF0566
Bit Symbol Bit Name Description R/W
7 to 3 ⎯ Reserved These bits are read as 1. The write value should
be 1.
⎯
2 NFEN Noise cancellation
function select
0: The noise cancellation function is invalid for
the RXD pin input.
1: The noise cancellation function is valid for the
RXD pin input (when the COM bit in SMR is
0).
R/W
1, 0 ⎯ Reserved These bits are read as 1. The write value should
be 1.
⎯
Note: The SPMR value is retained in (module) standby mode.
• NFEN bit (noise cancellation function select)
Performs noise cancellation for the RXD pin input when the COM bit in SMR is 0 and NFEN
bit is 1.