
Under
1-94
Specifications in this manual are tentative and subject to change
Rev. G
Timer Functions For Three-phase Motor Control
MITSUBISHI MICROCOMPUTERS
M30222 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Fig. 1.70. Registers related to timers for three-phase motor control
Three-phase output buffer register 0
b7
b6
b5
b4
b3
b2
b1
Symbol
IDB0
Address
034A
16
When reset
3F
16
Bit name
Function
Bit Symbol
W
R
b0
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
3F
16
Bit name
Function
Bit Symbol
W
R
b0
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
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
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.
Note1: 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
Nothing is assigned.
Write "0" when writing to these bits. If read, the value is "0".
Nothing is assigned.
Write "0" when writing to these bits. If read, the value is "0".