sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 693

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

19.3.2.3
The period register defines PER, the number of motor controller timer counter clocks a PWM period lasts.
The motor controller timer counter is clocked with the frequency f
refer to
PER = 2 * D[10:1].
For example, programming MCPER to 0x0022 (PER = 34 decimal) will result in 34 counts for each
complete PWM period. Setting MCPER to 0 will shut off all PWM channels as if MCAM[1:0] is set to 0
in all channel control registers after the next period timer counter overflow. In this case, the motor
controller releases all pins.
Freescale Semiconductor
Offset Module Base + 0x0002, 0x0003
Offset Module Base + 0x0002, 0x0003
Reset
Reset
W
W
R
R
Section 19.4.1.3.5, “Dither Bit
15
15
0
0
0
0
Motor Controller Period Register
= Unimplemented or Reserved
= Unimplemented or Reserved
Programming MCPER to 0x0001 and setting the DITH bit will be managed
as if MCPER is programmed to 0x0000. All PWM channels will be shut off
after the next period timer counter overflow.
14
14
0
0
0
0
Figure 19-5. Motor Controller Period Register (MCPER) with DITH = 0
Figure 19-6. Motor Controller Period Register (MCPER) with DITH = 1
13
13
0
0
0
0
12
12
0
0
0
0
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
11
11
0
0
0
0
(DITH)”), P0 is ignored and reads as a 0. In this case
P10
P10
10
10
0
0
P9
P9
9
0
9
0
NOTE
P8
P8
8
0
8
0
P7
P7
7
0
7
0
P6
P6
TC
6
0
6
0
. If dither mode is enabled (DITH = 1,
P5
P5
5
0
5
0
P4
P4
4
0
4
0
Motor Controller (MC10B8CV1)
P3
P3
3
0
3
0
P2
P2
2
0
2
0
P1
P1
1
0
1
0
P0
0
0
0
0
0
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