SH7046 Datasheet, PDF (208/611 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7046 Series

Section 10 Multi-Function Timer Pulse Unit (MTU)
10.3.4 Timer Interrupt Enable Register (TIER)
The TIER registers are 8-bit readable/writable registers that control enabling or disabling of
interrupt requests for each channel. The MTU has five TIER registers, one for each channel.
Initial
Bit Bit Name value R/W
7
TTGE
0
R/W
6

1
R
5
TCIEU
0
R/W
4
TCIEV
0
R/W
3
TGIED
0
R/W
Description
A/D Conversion Start Request Enable
Enables or disables generation of A/D conversion start
requests by TGRA input capture/compare match.
0: A/D conversion start request generation disabled
1: A/D conversion start request generation enabled
Reserved
This bit is always read as 1, and should only be written
with 1.
Underflow Interrupt Enable
Enables or disables interrupt requests (TCIU) by the
TCFU flag when the TCFU flag in TSR is set to 1 in
channels 1 and 2.
In channels 0, 3, and 4, bit 5 is reserved. It is always read
as 0, and should only be written with 0.
0: Interrupt requests (TCIU) by TCFU disabled
1: Interrupt requests (TCIU) by TCFU enabled
Overflow Interrupt Enable
Enables or disables interrupt requests (TCIV) by the TCFV
flag when the TCFV flag in TSR is set to 1.
0: Interrupt requests (TCIV) by TCFV disabled
1: Interrupt requests (TCIV) by TCFV enabled
TGR Interrupt Enable D
Enables or disables interrupt requests (TGID) by the
TGFD bit when the TGFD bit in TSR is set to 1 in
channels 0, 3, and 4.
In channels 1 and 2, bit 3 is reserved. It is always read as
0, and should only be written with 0.
0: Interrupt requests (TGID) by TGFD bit disabled
1: Interrupt requests (TGID) by TGFD bit enabled
Rev. 4.00 Dec 05, 2005 page 164 of 564
REJ09B0270-0400