MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 133
MC68HC912B32VFU8
Manufacturer Part Number
MC68HC912B32VFU8
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC912B32VFU8.pdf
(334 pages)
Specifications of MC68HC912B32VFU8
Cpu Family
HC12
Device Core Size
16b
Frequency (max)
8MHz
Interface Type
SCI/SPI
Program Memory Type
EPROM
Program Memory Size
32KB
Total Internal Ram Size
1KB
# I/os (max)
63
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC912B32VFU8
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
- Current page: 133 of 334
- Download datasheet (2Mb)
11.2.9 PWM Channel Counters 0–3
Read: Anytime
Write: Anytime
A write causes the PWM counter to reset to $00.
In special mode, if DISCR = 1, a write does not reset the PWM counter.
Each counter may be read anytime without affecting the count or the operation of the corresponding PWM
channel. Writes to a counter cause the counter to be reset to $00 and force an immediate load of both
duty and period registers with new values. To avoid a truncated PWM period, write to a counter while the
counter is disabled. In left-aligned output mode, resetting the counter and starting the waveform output is
controlled by a match between the period register and the value in the counter. In center-aligned output
mode, the counters operate as up/down counters, where a match in period changes the counter direction.
The duty register changes the state of the output during the period to determine the duty.
When a channel is enabled, the associated PWM counter starts at the count in the PWCNTx register
using the clock selected for that channel.
In special mode, when DISCP = 1 and is configured for left-aligned output, a match of period does not
reset the associated PWM counter.
Freescale Semiconductor
Address: $0048
Address: $0049
Address: $004A
Address: $004B
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
0
0
0
0
Figure 11-12. PWM Channel Counter 0 (PWCNT0)
Figure 11-13. PWM Channel Counter 1 (PWCNT1)
Figure 11-14. PWM Channel Counter 2 (PWCNT2)
Figure 11-15. PWM Channel Counter 3 (PWCNT3)
Bit 6
Bit 6
Bit 6
Bit 6
6
0
6
0
6
0
6
0
M68HC12B Family Data Sheet, Rev. 9.1
Bit 5
Bit 5
Bit 5
Bit 5
5
0
5
0
5
0
5
0
Bit 4
Bit 4
Bit 4
Bit 4
4
0
4
0
4
0
4
0
Bit 3
Bit 3
Bit 3
Bit 3
3
0
3
0
3
0
3
0
Bit 2
Bit 2
Bit 2
Bit 2
2
0
2
0
2
0
2
0
Bit 1
Bit 1
Bit 1
Bit 1
1
0
1
0
1
0
1
0
PWM Register Descriptions
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
0
0
0
0
133
Related parts for MC68HC912B32VFU8
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: