HD64F2149 Datasheet, PDF (338/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

11.2.5 Output Compare Register DM (OCRDM)
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Read/Write R R R R R R R R R/W R/W R/W R/W R/W R/W R/W R/W
OCRDM is a 16-bit readable/writable register in which the upper 8 bits are fixed at H'00.
When the ICRDMS bit in TOCR is set to 1 and the contents of OCRDM are other than H'0000,
the operation of ICRD is changed to include the use of OCRDM. The point at which input capture
D occurs is taken as the start of a mask interval. Next, twice the contents of OCRDM is added to
the contents of ICRD, and the result is compared with the FRC value. The point at which the
values match is taken as the end of the mask interval. New input capture D events are disabled
during the mask interval.
A mask interval is not generated when the ICRDMS bit is set to 1 and the contents of OCRDM are
H'0000.
OCRDM is initialized to H'0000 by a reset and in hardware standby mode.
11.2.6 Timer Interrupt Enable Register (TIER)
Bit
7
6
5
4
3
2
1
0
ICIAE ICIBE ICICE ICIDE OCIAE OCIBE OVIE
—
Initial value
0
0
0
0
0
0
0
1
Read/Write
R/W
R/W R/W
R/W R/W
R/W
R/W
—
TIER is an 8-bit readable/writable register that enables and disables interrupts.
TIER is initialized to H'01 by a reset and in hardware standby mode.
Bit 7—Input Capture Interrupt A Enable (ICIAE): Selects whether to request input capture
interrupt A (ICIA) when input capture flag A (ICFA) in TCSR is set to 1.
Bit 7
ICIAE
0
1
Description
Input capture interrupt request A (ICIA) is disabled
Input capture interrupt request A (ICIA) is enabled
(Initial value)
304