r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 732

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 11 16-Bit Timer Pulse Unit (TPU)
11.3.4
TIER registers control enabling or disabling of interrupt requests for each channel. The TPU has
six TIER registers, one for each channel.
Rev. 1.00 Sep. 19, 2008 Page 702 of 1342
REJ09B0467-0100
Bit
7
6
5
4
3
Bit Name
TTGE
—
TCIEU
TCIEV
TGIED
Timer Interrupt Enable Register (TIER)
Initial value
0
1
0
0
0
R/W
R/W
—
R/W
R/W
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 cannot be modified.
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, 2, 4, and 5.
In channels 0 and 3, bit 5 is reserved. It is always
read as 0 and cannot be modified.
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 and 3.
In channels 1, 2, 4, and 5, bit 3 is reserved. It is
always read as 0 and cannot be modified.
0: Interrupt requests (TGID) by TGFD bit disabled
1: Interrupt requests (TGID) by TGFD bit enabled