SH7604 Datasheet, PDF (596/633 Pages) Hitachi Semiconductor – Hardware Manual

FRT
Bit
Bit Name
Value
Description
2 Output compare flag B 0 Clear conditions: When OCFB = 1, OCFB is read and
(OCFB)
then 0 is written to it (Initial value)
1 Set conditions: When FRC value becomes equal to
OCRB
1 Timer overflow flag
0 Clear conditions: When OVF = 1, OVF is read and then 0
(OVF)
is written to it (Initial value)
1 Set conditions: When FRC value changes from H'FFFF to
H'0000
0 Counter clear A
0 Disables FRC clear (Initial value)
(CCLRA)
1 Clears FRC on compare match A
H'FFFFFE12(FRCH)
Free-running counter (FRC)
H'FFFFFE13(FRCL)
16*
Note: Access FRCH first and then FRCL, two 8-bit units.
Item
Bit Name
Initial Value
R/W
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0000 0000 0000 0000
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit
Bit Name
15 to 0 (Count value)
Description
Counts input clock pulses
Output compare register A/B*¹
(OCRA/B)
H'FFFFFE14(OCRA/BH
H'FFFFFE15(OCRA/BL)
16*²
Notes: 1. Switch registers with OCRS in TOCR.
2. Access OCRA/BH first and then OCRA/BL, in two 8-bit units.
Item
Bit Name
Initial Value
R/W
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0000 0000 0000 0000
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit
Bit Name
Description
15 to 0 (FRC value comparison) Sets OCFA when OCFA = FRC
Sets OCFB when OCFB = FFC
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