HD6432670 Hitachi, HD6432670 Datasheet - Page 578

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

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.
Bit
7
6
5
4
3
Rev. 2.0, 04/02, page 532 of 906
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