ST10F280 STMicroelectronics, ST10F280 Datasheet - Page 69

• Manufacturer Part Number: ST10F280
• Description: MCU 16BIT 512K FLASH MAC 208-PBG
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F280

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: ASC, CAN, EBI/EMI, SSC
• Peripherals: POR, PWM, WDT
• Number Of I /o: 143
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 18K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 32x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 208-PBGA
• Processor Series: ST10F28x
• Core: ST10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

11.2.5 - XPOLAR Register (polarity of the XPWM channel)
XPOLAR (EC04h)
Software Control of the XPWM Outputs
In an application the XPWM output signals are
generally controlled by the XPWM module. How-
ever, it may be necessary to influence the level of
the XPWM output pins via software either to ini-
tialize the system or to react on some extraordi-
nary condition, e.g. a system fault or an
emergency.
Clearing the timer run bit PTRx stops the associ-
ated counter and leaves the respective output at
its current level.
The individual XPWM channel outputs are con-
trolled by comparators according to the formula:
XPOLAR.x
15
-
14
Bit
-
13
-
12
0
1
-
XPOLAR Channel x polarity Bit
Polarity of Channel x is normal
Polarity of Channel x is inverted
11
-
10
-
9
-
8
-
7
-
6
-
5
-
– PWM output signal = [PTx]
So whenever software changes registers XPTx,
the respective output will reflect the condition after
the change. Loading timer XPTx with a value
greater than or equal to the value in XPWx imme-
diately sets the respective output, a XPTx value
below the XPWx value clears the respective out-
put.
Note
Function
latch].
4
-
To prevent further PWM pulses from
occurring
intervention the respective counter must
be stopped first.
XPOLAR.3 XPOLAR.2 XPOLAR.1 XPOLAR.0
RW
3
after
RW
2
such
Reset Value: 0000h
RW
1
[PWx shadow
a
ST10F280
software
RW
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