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1. About This Platform
1.1 The hardware block diagram
M16C/Tiny
(SD)
P8
/nNMI/nSD
5
Three-phase motor control
(V
)
P7
/TA1
/V
2
OUT
P
(V
)
P7
/TA1
//V
N
3
IN
(W
)
P7
/TA2
/W
P
4
OUT
(W
)
P7
/TA2
//W
N
5
IN
(U
)
P8
/TA4
/U
P
0
OUT
(U
)
P8
/TA4
//U
N
1
IN
(V
)
P10
/AN
BUS
3
3
(I
)
BUS
P10
/AN
2
2
Speed Command
P0
/AN0
1
1
A/D Conversion
(U
)
P1
/INT5
BEMF
7
(W
)
P1
/INT4
BEMF
6
P1
/INT3
(V
)
BEMF
5
Induce voltage detect
1.2 The hardware resource assignment table
Used SFR
Function Description
TA1
U phase PWM wave
TA2
V phase PWM wave
TA4
W phase PWM wave
TB1
50us cycle inquiry
TB2
Carrier wave cycle control
RSBJEUM0001-0101 Rev. 1.01
F
O
(V
)
P
IPM
(V
)
N
(W
)
circuit
P
6
(W
)
N
(U
)
P
(U
)
N
V
V
Potentionmeter
Comparator
Used I/O Port
P1
P16/
P1
POWER
circuit
V
V
PVcc
V
BUS
BUS
U
W
bus
_IN
3
Vin Uin Win
PVcc
ACCT
IBus
Sample Circuit
Function Description
V phase induced voltage detection
INT
/
/IDV
5
3
W phase induced voltage detection
INT
/IDW
4
U phase induced voltage detection
INT
/
/IDU
7
5
Rotation Speed Command
P0
/AN0
1
1
Bus current sample
P10
/AN
2
2
Bus voltage sample
P10
/AN
3
3
P7
/V
V phase voltage
2
V
V
P7
/
phase voltage
3
P7
/W
W phase voltage
4
W
W
P7
/
phase voltage
5
P8
/U
U phase voltage
0
U
U
P8
/
phase voltage
1
L
L
220V AC
N
N
OUT
V
Motor
U
W
7
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