HD64F2149YV datasheet(1007/1075 Pages) RENESAS

1007 / 1075 page

Appendix B Internal I/O Registers

Rev. 3.00 Jan 18, 2006 page 979 of 1044

REJ09B0280-0300

TCSRY—Timer Control/Status Register Y

H'FFF1

TMRY

CMFB

R/(W)*

CMFA

R/(W)*

OVF

R/(W)*

ICIE

R/W

OS3

R/W

OS0

R/W

OS2

R/W

OS1

R/W

Bit

Initial value

Read/Write

TCSRY

Output select 1 and 0

No change at compare match A

0 output at compare match A

1 output at compare match A

Output inverted at compare

match A (toggle output)

Note:

Output select 3 and 2

No change at compare match B

0 output at compare match B

1 output at compare match B

Output inverted at compare

match B (toggle output)

Input capture interrupt enable

Interrupt request by ICF (ICIX) is disabled

Interrupt request by ICF (ICIX) is enabled

Timer overflow flag

[Clearing condition]

When 0 is written in OVF after reading OVF = 1

[Setting condition]

When TCNT overflows from H'FF to H'00

Compare match flag A

[Clearing conditions]

• When 0 is written in CMFA after reading CMFA = 1

• When the DTC is activated by a CMIA interrupt

[Setting condition]

When TCNT = TCORA

Compare match flag B

[Clearing conditions]

• When 0 is written in CMFB after reading CMFB = 1

• When the DTC is activated by a CMIB interrupt

[Setting condition]

When TCNT = TCORB

* Only 0 can be written in bits 7 to 5, to clear the flags.

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