LPC1112FHN33/203,5 NXP Semiconductors, LPC1112FHN33/203,5 Datasheet - Page 351
LPC1112FHN33/203,5
Manufacturer Part Number
LPC1112FHN33/203,5
Description
ARM Microcontrollers - MCU Cortex-M0 16kB flash up to 4 kB SRAM
Manufacturer
NXP Semiconductors
Datasheet
1.LPC1113FHN333035.pdf
(538 pages)
Specifications of LPC1112FHN33/203,5
Rohs
yes
Core
ARM Cortex M0
Processor Series
LPC1112
Data Bus Width
32 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
16 KB
Data Ram Size
4 KB
On-chip Adc
Yes
Operating Supply Voltage
1.8 V to 3.6 V
Operating Temperature Range
- 65 C to + 150 C
Package / Case
HVQFN-33
Mounting Style
SMD/SMT
Factory Pack Quantity
260
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NXP Semiconductors
UM10398
User manual
19.7.13 Rules for single edge controlled PWM outputs
Table 309. PWM Control Register (TMR16B0PWMC - address 0x4000 C074 and
Note: When the match outputs are selected to serve as PWM outputs, the timer reset
(MRnR) and timer stop (MRnS) bits in the Match Control Register MCR must be set to 0
except for the match register setting the PWM cycle length. For this register, set the
MRnR bit to 1 to enable the timer reset when the timer value matches the value of the
corresponding match register.
Bit
3
31:4
1. All single edge controlled PWM outputs go LOW at the beginning of each PWM cycle
2. Each PWM output will go HIGH when its match value is reached. If no match occurs
3. If a match value larger than the PWM cycle length is written to the match register, and
4. If a match register contains the same value as the timer reset value (the PWM cycle
5. If a match register is set to zero, then the PWM output will go to HIGH the first time the
Fig 72. Sample PWM waveforms with a PWM cycle length of 100 (selected by MR3) and
(timer is set to zero) unless their match value is equal to zero.
(i.e. the match value is greater than the PWM cycle length), the PWM output remains
continuously LOW.
the PWM signal is HIGH already, then the PWM signal will be cleared on the next start
of the next PWM cycle.
length), then the PWM output will be reset to LOW on the next clock tick. Therefore,
the PWM output will always consist of a one clock tick wide positive pulse with a
period determined by the PWM cycle length (i.e. the timer reload value).
timer goes back to zero and will stay HIGH continuously.
Symbol
PWMEN3
-
MAT3:0 enabled as PWM outputs by the PWCON register.
TMR16B1PWMC- address 0x4001 0074) bit description
PWM2/MAT2
PWM1/MAT1
PWM0/MAT0
All information provided in this document is subject to legal disclaimers.
Value
0
1
Rev. 12 — 24 September 2012
Chapter 19: LPC1100XL series: 16-bit counter/timer CT16B0/1
0
Description
PWM channel3 enable
Note: It is recommended to use match channel 3 to set
the PWM cycle because it is not pinned out.
Match channel 3 match channel 3 is controlled by EM3.
PWM mode is enabled for match channel 3match
channel 3.
Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is not
defined.
41
65
(counter is reset)
100
MR2 = 100
MR1 = 41
MR0 = 65
UM10398
© NXP B.V. 2012. All rights reserved.
Reset
value
0
NA
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