Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Timers’ functions for three-phase motor control
96
Three-phase output buffer register 0
b7
b6 b5
b4
b3
b2
b1
Symbol
IDB0
Address
034A
16
When reset
00
16
Bit name
Function
Bit Symbol
W
R
b0
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
DU0
DUB0
DV0
DW0
DVB0
DWB0
U phase output buffer 0
Setting in U phase output buffer 0
V phase output buffer 0
W phase output buffer 0
U phase output buffer 0
V phase output buffer 0
W phase output buffer 0
Setting in V phase output buffer 0
Setting in W phase output buffer 0
Setting in W phase output buffer 0
Setting in V phase output buffer 0
Setting in U phase output buffer 0
Three-phase output buffer register 1
b7
b6 b5
b4
b3
b2
b1
Symbol
IDB1
Address
034B
16
When reset
00
16
Bit name
Function
Bit Symbol
W
R
b0
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
DU1
DUB1
DV1
DW1
DVB1
DWB1
U phase output buffer 1
Setting in U phase output buffer 1
V phase output buffer 1
W phase output buffer 1
U phase output buffer 1
V phase output buffer 1
W phase output buffer 1
Setting in V phase output buffer 1
Setting in W phase output buffer 1
Setting in W phase output buffer 1
Setting in V phase output buffer 1
Setting in U phase output buffer 1
Dead time timer (Note)
b7
Symbol
DTT
Address
034C
16
When reset
Indeterminate
Function
Values that can be set
W
R
b0
Set dead time timer
1 to 255
Timer B2 interrupt occurrences frequency set counter (Note 1, 2, 3)
b3
b0
Symbol
ICTB2
Address
034D
16
When reset
Indeterminate
Function
Values that can be set
W
R
Set occurrence frequency of timer B2
interrupt request
1 to 15
Note: When executing read instruction of this register, the contents of three-phase shift
register is read out.
Note: When executing read instruction of this register, the contents of three-phase shift
register is read out.
Note 1: In setting 1 to bit 1 (INV01) - the effective interrupt output specification bit - of three-
phase PWM control register 0, do not change the B2 interrupt occurrences frequency
set counter to deal with the timer function for three-phase motor control.
Note 2: Do not write at the timing of an overflow occurrence in timer B2.
Note 3: Use MOV instruction to write to this register.
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
Note: Use MOV instruction to write to this register.
Figure 1.15.2. Registers related to timers for three-phase motor control