IRMCK201 International Rectifier Corp., IRMCK201 Datasheet - Page 40

• Manufacturer Part Number: IRMCK201
• Description: High Performance Configurable Digital Ac Servo Control Ic
• Manufacturer: International Rectifier Corp.

P
P
w
w
m
m
Field
Name
EncAngScl
CntEnb
ZPulsePol
ZPulseEnb
PwrOnRedSig
RedSig
C
C
Offset
Byte
o
o
0xC
0xD
0xE
0xF
n
n
f
f
i
i
g
g
R
R
e
e
g
g
Gatekill
i
i
s
s
Sns
(W)
7
t
t
e
e
r
r
SPARE
G
G
QuadratureDecode Write Register Field Definitions
r
r
o
o
SPARE
Access
(R/W)
u
u
p
p
6
W
W
W
W
W
W
(
(
W
W
r
PwmConfig Write Register Map
r
i
i
t
t
e
e
IRMCK201
Field Description
This value should be set to ((MtrPoles / 2) * (4096 * 4096) /
(MaxEncCnt + 1), where MtrPoles is the number of motor
poles. The value is used to convert the encoder count to an
angle ranging from 0 - 4095 using the equation: Angle =
((MtrPoles / 2) * 4096 * (encoder count) / (MaxEncCnt + 1))
MOD 4096.
the EncCntR feld of the QuadratureDecodeStatus read
register group.)
Encoder counter enable.
ZPULSE polarity. 1= load ZEncCnt on rising Z-pulse edge.
0= load ZEncCnt on falling Z-pulse edge.
ZPULSE count initialization enable. When this bit is set, the
encoder count is set to the ZEncCnt value at each Z-pulse
edge as determined by the ZPulsePol field.
PowerOn Reduced signal enable.
EEPROM to enable EEPROM standalone initialization for a
wire-saving encoder.
initialization uses the PwrOnHallA, PwrOnHallB, PwrOnHallC
bits instead of the HallA, HallB, HallC bits to determine initial
motor angle.
QuadratureDecodeStatus read register group.)
Reduced signal encoder enable. 1 = read Hall A/B/C fields
from encoder A/B/Z wires.
SnsL
R
Gate
R
(W)
5
e
e
PwmConfig
g
g
i
i
s
s
(W)
t
t
e
e
r
r
s
s
SnsU
PwmPeriod (LSBs)
Gate
)
(W)
)
Bit Position
4
PwmDeadTm
(The current encoder count can be read from
(W)
(W)
(The Hall bits can be read from the
3
When this bit is set, the EEPROM
SPARE
PwmPeriod (MSBs)
2
(W)
Set this bit in the
(W)
SD
1
SPARE
0