The K22 (and some KL devices) have a (minor) problem with the PIT according to e7914. See the following for K22:
The same difficulty has also been encountered with the K64 as reported here (with full details): http://www.utasker.com/forum/index.php?topic=1879.0
It seems therefore appropriate to add e7914 to the 1N83J errata sheet.
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