參數(shù)資料
型號: LPC11C24FBD48/301,
廠商: NXP Semiconductors
文件頁數(shù): 22/52頁
文件大?。?/td> 0K
描述: IC MCU 32BIT 32KB FLASH 48LQFP
產(chǎn)品培訓模塊: Code Density for LPC11xx
特色產(chǎn)品: 32-bit ARM Cortex-M0 Microcontrollers
標準包裝: 250
系列: LPC11Cxx
核心處理器: ARM? Cortex?-M0
芯體尺寸: 32-位
速度: 50MHz
連通性: CAN,CAN,I²C,Microwire,SPI,SSI,SSP,UART/USART
外圍設備: 欠壓檢測/復位,POR,WDT
輸入/輸出數(shù): 36
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
RAM 容量: 8K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 48-LQFP
包裝: 托盤
其它名稱: 568-6644
LPC11C24FBD48/301
29
State-configurable timer (SCT)
The state-configurable timer (SCT), a new patent-
pending peripheral developed by NXP, is a
sophisticated yet easy-to-configure timing function
that delivers unprecedented flexibility. The SCT lets
designers configure advanced timing operations
including those required for complex motor-control
functions while meeting tight development schedules. Initially
available on the Cortex-M3 LPC1800 and Cortex-M4 LPC4300 series,
the SCT is a timer-capture unit coupled with a highly flexible, event-
driven state machine. It brings two familiar concepts event and state
to the area of timing, and thus enables a wide variety of operations for
timing, counting, output modulation, and input capture.
Features
Two 16-bit counters or one 32-bit counter
Counter(s) clocked by bus clock or selected input
Up counter(s) or up-down counter(s)
State variable allows sequencing across multiple counter cycles
Event combines input or output condition and/or counter match in a
specified state
Events control outputs and interrupts
Selected event(s) can limit, halt, start, or stop a counter
Supports:
- up to 8 inputs (one input connected internally)
- up to 16 outputs
- 16 match/capture registers
- 16 events
- 32 states
Available with Cortex-M3 LPC1800 and Cortex-M4 LPC4300 series
The SCT combines a timer with a state machine
+
State
0
EV1
(min off)
(LF low)
IREF/max on
(min off)
(LF high)
IREF/max on
ZCD/max off
EV2
EV3
EV1
(LF
high)
EV5
(LF
low)
EV7
EV2
EV6
EV4
State
1
State
2
State
3
State
4
State
5
State
6
State
7
ZCD/max off
EV4
SCT selection guide
Series
ARM core
Memory
SCT subsystem
Flash (KB)
SRAM (KB)
LPC1800
Cortex-M3
Up to 1024
(2 x 512)
Up to 200
Yes
LPC4300
Cortex-M4
Up to 1024
(2 x 512)
Up to 264
Yes
5.
State-configurable timer
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