sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 695

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

19.3.2.5
Each duty cycle register sets the sign and duty functionality for the respective PWM channel.
The contents of the duty cycle registers define DUTY, the number of motor controller timer counter clocks
the corresponding output is driven low (RECIRC = 0) or is driven high (RECIRC = 1). Setting all bits to 0
will give a static high output in case of RECIRC = 0; otherwise, a static low output. Values greater than
or equal to the contents of the period register will generate a static low output in case of RECIRC = 0, or
a static high output if RECIRC = 1. The layout of the duty cycle registers differ dependent upon the state
of the FAST bit in the control register 0.
Freescale Semiconductor
Offset Module Base + 0x0020 . . . 0x002F
Reset
W
R
15
S
0
Motor Controller Duty Cycle Registers
The PWM motor controller will release the pins after the next PWM timer
counter overflow without accommodating any channel delay if a single
channel has been disabled or if the period register has been cleared or all
channels have been disabled. Program one or more inactive PWM frames
(duty cycle = 0) before writing a configuration that disables a single channel
or the entire PWM motor controller.
= Unimplemented or Reserved
Figure 19-8. Motor Controller Duty Cycle Register x (MCDCx) with FAST = 0
14
S
0
CD[1:0]
13
S
0
00
01
10
11
12
S
0
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
11
S
0
Table 19-9. Channel Delay
D10
10
0
D9
9
0
NOTE
n [# of PWM Clocks]
D8
8
0
0
1
2
3
D7
7
0
D6
6
0
D5
5
0
D4
4
0
Motor Controller (MC10B8CV1)
D3
3
0
Access: User read/write
D2
2
0
D1
1
0
D0
0
0
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