SH7706 Datasheet, PDF (378/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 12 Timer Unit (TMU)
Bit Bit Name Initial Value R/W Description
9
ICPF
0
R
Input Capture Interrupt Flag
A function of channel 2 only: the flag is set when input
capture is requested via the TCLK pin.
0: No input capture request has been issued.
Clearing condition: When 0 is written to ICPF
1: Input capture has been requested via the TCLK pin.
Setting condition: When an input capture is
requested via the TCLK pin*
Note: * Contents do not change when 1 is written to
ICPF.
8
UNF
0
R/W Underflow Flag
Status flag that indicates occurrence of a TCNT_2
underflow.
0: TCNT has not underflowed.
Clearing condition: When 0 is written to UNF
1: TCNT has underflowed.
Setting condition: When TCNT_2 underflows*
Note: * Contents do not change when 1 is written to
UNF.
7
ICPE1
0
R/W Input Capture Control
6
ICPE0
0
R/W A function of channel 2 only: determines whether the
input capture function can be used, and when used,
whether or not to enable interrupts.
When using this input capture function it is necessary to
set the TCLK pin to input mode with the TCOE bit in the
TOCR register. Additionally, use the CKEG bit to
designate use of either the rising or falling edge of the
TCLK pin to set the value of TCNT_2 in TCPR_2.
00: Input capture function is not used.
01: Reserved (Setting prohibited)
10: Input capture function is used. Interrupt due to ICPF
(TICPI2) are not enabled.
11: Input capture function is used. Interrupt due to ICPF
(TICPI2) are enabled.
Rev. 5.00 May 29, 2006 page 330 of 698
REJ09B0146-0500