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5
D
MOTOR PHASE A CURRENT SENSE
MOTOR PHASE C CURRENT SENSE
MOTOR DRIVE BRAKE CONTROL
C
PHASE B BACK EMF
UNI-3 SERIAL
B
T P 1
T P 2
U N I _ 3 _ + 1 5
1
1
+15VA
GND
T P 3
T P 4
UNI_3_-15
1
1
-15VA
GND
A
TEST POINTS NEAR
UNI-3 CONNECTOR
5
4
UNI-3 CONNECTOR
PWM_AT
P W M 0
PWM_AB
P W M 1
PWM_BT
P W M 2
PWM_BB
P W M 3
PWM_CT
P W M 4
PWM_CB
P W M 5
+ 5 . 0 V _ U N I 3
U N I _ 3 _ + 1 5
V_S_DCB
A N 0
U 3 _ P H A _ I S
U 3 _ P H C _ I S
M I S O
P F C _ P W M
P F C _ Z E R O _ C R O S S I N G
Z E R O _ X _ B
B K _ E M F _ B
COM JUMPER
/ S S
PFC INHIBIT JUMPER
S C L K
Title
UNI-3 INTERFACE
Document
Size
Number
A
Date:
4
Figure A-8. UNI-3 INTERFACE
3
P 3
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
+ 5 . 0 V _ U N I 3
1 3
1 4
1 5
1 6
+ 3 . 3 V A
1 7
1 8
UNI_3_-15
1 9
2 0
I_S_DCB
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
S E R I A L _ C O M
2 9
3 0
P F C _ I N H I B I T
3 1
3 2
3 3
3 4
3 5
3 6
3 7
3 8
3 9
4 0
J G 1
S E R I A L _ C O M
1
2
P F C _ I N H I B I T
3
4
DSP56F801EVM.DSN
Designer:
Saturday, October 28, 2000
3
2
1
A N 1
U 3 _ P H B _ I S
MOTOR PHASE B CURRENT SENSE
A N 5
MOTOR DRIVE TEMPERATURE SENSE
Z E R O _ X _ A
Z E R O _ X _ C
PHASE A BACK EMF
B K _ E M F _ A
PHASE C BACK EMF
B K _ E M F _ C
DSP Standard Products Division
2100 East Elliot Road
Tempe, Arizona 85284
(480) 413-5090
FAX: (480) 413-2510
Sheet
of
8
D S P D D e s i g n
2
1
D
C
B
A
Rev.
1.0
1 1
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