
Rev. 2.0, 09/02, page 232 of 732
Bit
Bit Name
Initial value
R/W
Description
7
—
1
R
Reserved
This bit is always read as 1 and should be written with
1.
6
BDC
0
R/W
Brushless DC Motor
This bit selects whether to make the functions of this
register (TGCR) effective or ineffective.
0: Ordinary output
1: Functions of this register are made effective
5
N
0
R/W
Reverse Phase Output (N) Control
This bit selects whether the level output or the reset-
synchronized PWM/complementary PWM output
while the reverse pins (TIOC3D, TIOC4C, and
TIOC4D) are output.
0: Level output
1: Reset synchronized PWM/complementary PWM
output
4
P
0
R/W
Positive Phase Output (P) Control
This bit selects whether the level output or the reset-
synchronized PWM/complementary PWM output
while the positive pin (TIOC3B, TIOC4A, and
TIOC4B) are output.
0: Level output
1: Reset synchronized PWM/complementary PWM
output
3
FB
0
R/W
External Feedback Signal Enable
This bit selects whether the switching of the output of
the positive/reverse phase is carried out automatically
with the MTU/channel 0 TGRA, TGRB, TGRC input
capture signals or by writing 0 or 1 to bits 2 to 0 in
TGCR.
0: Output switching is external input (Input sources
are channel 0 TGRA, TGRB, TGRC input capture
signal)
1: Output switching is carried out by software
(TGCR's UF, VF, WF settings).
2
1
0
WF
VF
UF
0
0
0
R/W
R/W
R/W
Output Phase Switch 2 to 0
These bits set the positive phase/negative phase
output phase on or off state. The setting of these bits
is valid only when the FB bit in this register is set to 1.
In this case, the setting of bits 2 to 0 is a substitute for
external input. See table 11.28.