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11.2.2
Time Constant Register A (TCORA)
TCORA is an 8-bit readable/writable register. TCORA_0 and TCORA_1 comprise a single 16-bit
register, so they can be accessed together by word access. TCORA is continually compared with
the value in TCNT. When a match is detected, the corresponding compare-match flag A (CMFA)
in TCSR is set to 1. However, comparison is disabled during the T2 state of a TCORA write cycle.
TCORA is initialized to H'FF.
TCORA_Y can be accessed when the TMRX/Y bit in TCONRS is 1. TCORA_X can be accessed
when the TMRX/Y bit in TCONRS is 0. See section 11.2.6, Timer Connection Register S
(TCONRS).
11.2.3
Time Constant Register B (TCORB)
TCORB is an 8-bit readable/writable register. TCORB_0 and TCORB_ 1 comprise a single 16-bit
register, so they can be accessed together by word access. TCORB is continually compared with
the value in TCNT. When a match is detected, the corresponding compare-match flag B (CMFB)
in TCSR is set to 1. However, comparison is disabled during the T2 state of a TCORB write cycle.
TCORB is initialized to H'FF.
TCORB_Y can be accessed when the TMRX/Y bit in TCONRS is 1. TCORB_X can be accessed
when the TMRX/Y bit in TCONRS is 0. See section 11.2.6, Timer Connection Register S
(TCONRS).
Section 11 8-Bit Timer (TMR)
Rev. 1.00 Mar. 12, 2008 Page 395 of 1178
REJ09B0403-0100
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