Hitachi H8S/2646 Hardware Manual page 1099

TCNT1—Timer Counter 1
Bit 7
Initial value 0
Read/Write R/W
Note: TCNT is write-protected by a password to prevent accidental overwriting.
For details see section 12.2.4, Notes on Register Access.
6 5
0 0
R/W R/W R/W
H'FFA2(W), H'FFA3(R)
4 3 2
0 0 0
R/W R/W
Up-counter
WDT1
1 0
0 0
R/W R/W
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