ST7FMC1K2B3 STMICROELECTRONICS [STMicroelectronics], ST7FMC1K2B3 Datasheet - Page 223

• Manufacturer Part Number: ST7FMC1K2B3
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

MOTOR CONTROLLER (Cont’d)
PWM REGISTER (MPWME)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7 = DG:Debug Option.
This bit is used to enter debug mode. As a result,
C, D and Z events are output on 2 pins MCDEM
and MCZEM in Switched and Autoswitched mode,
C and U events are output in Speed Measurement
mode. Refer to
more details
0: Normal mode
1: Debug mode
Bit 6 = PWMW: PWM W output control
0: PWM on Compare Register W is not output on
1: PWM on Compare Register W is output on
Bit 5 = PWMV: PWM V output control
0: PWM on Compare Register V is not output on
1: PWM on Compare Register V is output on MCP-
Bit 4 = PWMU: PWM U output control
0: PWM on Compare Register U is not output on
1: PWM on Compare Register U is output on
DG
MCPWMW pin
MCPWMW pin
MCPWMV pin
WMV pin
MCPWMU pin
MCPWMU pin
7
PWMW PWMV PWMU
6
5
section10.6.7.3 on page 172
4
OT3
3
OT2
2
OT1
1
OT0
0
for
Bits 3:0 = OT[3:0]: Off Time selection
These bits are used to select the OFF time in sen-
sorless current mode as shown in the following ta-
ble.
Table 76. OFF time bits
Note: Times are indicated for 4 MHz f
OT3 OT2 OT1 OT0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
sorless mode
Off Time sen-
(DS[3:0]=0)
32.5
37.5
12.5 µs
17.5 µs
22.5 µs
27.5 µs
(SR=0)
2.5 µs
7.5 µs
35
40
10 µs
15 µs
20 µs
25 µs
30 µs
ST7MC1xx/ST7MC2xx
5 µs
μs
μs
μs
μs
pling during ON
No minimum off -
(SR=1) or sam-
and/or DS [3:0]
ime in sensor-
less (SPLG =1
Sensor Mode
PERIPH
bits)
time
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