FCM8201 Fairchild Semiconductor, FCM8201 Datasheet - Page 18

• Manufacturer Part Number: FCM8201
• Description: FCM8201 is a three-phase sinusoidal brushless DC (BLDC) motor controller
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FCM8201 • Rev. 1.0.2
WDT_REG: Watch Dog Timer Control Register
DUTY_REG: Duty Control Register
Addr. Name Type
IP_REG: Error Amplifier IP Pin Control Register
0x06 WDT W/R
Addr. Name Type
Addr. Name Type
0x09
0x08
DUTY W/R
IP
Reset
b[1:0] W_TMR[1:0]
b7
b6
b4
b3
b2
Reset
b[7:0] IP[7:0]
Reset
b[7:0] DUTY[7:0]
W/R
OSL_DIS
OSL_DIS
CRC_ON
WDT_EN
OTL_DIS
DUTY7
CLR
IP7
B7
B7
0
0
B7
0
IP Pin Level of Error Amplifier Configure
0 ~ 255=0.5 ~ 4.5V
Open Short (OS) Fault Latch Disable
0=OS protect does not latch
1=OS protect does not latch and clear by FREE/nST pin rising edge
or FREE/nST bit=1
Over Temperature Fault Latch Disable
0=OTP protect does not latch
1=OTP protect will latch, and clear by FREE/nST pin rising edge
or FREE/nST bit=1
SPI CRC Check Enable
0=SPI CRC check disable
1=SPI CRC check enable
Watch Dog Timer Enable
0=watch dog timer disable
1=watch dog timer enable and outputs a faulty when the counter reaches time-out
Watch Dog Timer Clear (This bit is effective only when WDT_EN=1)
1=WDT counter reset, after counter is cleared to zero, this bit auto-resets to 0
Watch Dog Timer Counter Select
0,0=0.25s at f
0,1=0.5s at f
1,0=1s at f
1,1=2s at f
DUTY Level Configure
0 ~ 255=0.5 ~ 4.5V
OTL_DIS
DUTY6
IP6
B6
0
B6
0
B6
0
SYS
SYS
DUTY5
SYS
=1.28MHz
=1.28MHz
SYS
IP5
B5
B5
0
0
=1.28MHz
n/a
B5
=1.28MHz
0
18
DUTY4
CRC_ON
IP4
B4
B4
0
0
B4
0
DUTY3
WDT_EN
IP3
B3
B3
0
0
B3
0
DUTY2
IP2
B2
B2
CLR
B2
0
0
0
W_TMR1 W_TMR0
DUTY1
IP1
B1
B1
B1
0
0
0
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DUTY0
IP0
B0
B0
B0
0
0
0