HMS87C1808B Datasheet, PDF (83/99 Pages) List of Unclassifed Manufacturers – 8-BIT SINGLE-CHIP MICROCONTROLLERS

HMS87C1X04B/08B/16B
21.4 Examples of ONP
ONPb
0
0
0
0
0
1
IN_CLK
0
0
0
0
1
X
LF_on
0
0
1
1
X
X
Xin_opt
Description
0
40ns noise canceller
1
80ns noise canceller
0
40ns noise canceller + change the clock source from external to internal
4MHz clock when oscillation failure occured.
1
80ns noise canceller + change the clock source from external to internal
4MHz clock when oscillation failure occured
X
using internal 4MHz oscillator regardless of external oscillator
X
ONP disable
Table 21-1 Examples of ONP
SEP. 2004 Ver 1.03
79