SH7014 Datasheet, PDF (252/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

10. Multifunction Timer Pulse Unit (MTU)
Bit 5⎯Underflow Flag (TCFU): This status flag indicates the occurrence of a channel 1, 2
TCNT counter underflow.
This bit is reserved in channel 0. This bit always reads as 0. The write value should always be 0.
Bit 5
TCFU
0
1
Description
Clear condition: With TCFU = 1, a 0 write to TCFU after reading it
(initial value)
Set condition: When the TCNT value underflows (H'0000 → H'FFFF)
Bit 4⎯Overflow Flag (TCFV): This status flag indicates the occurrence of a TCNT counter
overflow.
Bit 4
TCFV
0
1
Description
Clear condition: With TCFV = 1, a 0 write to TCFV after reading it
(initial value)
Set condition: When the TCNT value overflows (H'FFFF → H'0000)
Bit 3⎯Input Capture/Output Compare Flag D (TGFD): This status flag indicates the
occurrence of a channel 0 TGRD register input capture or compare-match.
This bit is reserved in channels 1 and 2. It always reads as 0. The write value should always be 0.
Bit 3
TGFD
0
1
Description
Clear condition: With TGFD = 1, a 0 write to TGFD following a read
(initial value)
Set conditions:
• When TGRD is functioning as an output compare register
(TCNT = TGRD)
• When TGRD is functioning as input capture (the TCNT value is sent
to TGRD by the input capture signal)
Rev.5.00 Sep. 27, 2007 Page 218 of 716
REJ09B0398-0500