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參數(shù)資料
| 型號(hào)： | MCF5249LPV120 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 120 MHz, RISC PROCESSOR, PQFP144 |
| 封裝： | 20 X 20 X 1.4 MM, 0.50 MM PITCH, LQFP-144 |
| 文件頁數(shù)： | 84/446頁 |
| 文件大小： | 5856K |
| 代理商： | MCF5249LPV120 |
11-4
MCF5249UM
MOTOROLA
General-Purpose Timer Registers
11.5.1
TIMER MODE REGISTERS (TMR0, TMR1)
The TMR is a 16-bit memory-mapped register. This register programs the various timer modes and is
cleared by reset.
Table 11-2
Timer Mode Register (TMRn)
BITS
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
FIELD
PRESCALER VALUE (PS7 - PS0)
CE1 - CE0 OM
ORI FRR
CLK1 -
CLK0
RESET
0
0000
0
R/W
READ/WRITE SUPERVISOR OR USER MODE
ADDR
MBAR+$140, MBAR+$180
Table 11-3 Timer Mode Bit Descriptions
BIT NAME
DESCRIPTION
PS7–PS0
The Prescaler Value is programmed to divide the clock input by values from 1 to
256. The value 00000000 divides the clock by 1; the value 11111111 divides the
clock by 256.
Prescalar value = $[PS7 - PS0] + 1
CE1–CE0
Capture Edge and Enable Interrupt
11 = Capture on any edge and enable interrupt on capture event
10 = Capture on falling edge only and enable interrupt on capture event
01 = Capture on rising edge only and enable interrupt on capture event
00 = Disable interrupt on capture event
OM
Output Mode
1 = Toggle output
0 = Active-low pulse for one system clock cycle (14.28 ns at 70 MHz)
ORI
Output Reference Interrupt Enable
1 = Enable interrupt upon reaching the reference value
0 = Disable interrupt for reference reached (does not affect interrupt on capture
function)
Note:
If ORI is set when the REF event is asserted in the Timer Event Register (TER), an
immediate interrupt occurs. If ORI is cleared while an interrupt is asserted, the
interrupt negates.
FRR
Free Run/Restart
1 = Restart: Timer count is reset immediately after reaching the reference value
0 = Free run: Timer count continues to increment after reaching the reference value
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCF5249PB | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:system controller/decoder |
| MCF5249VF140 | 功能描述:微處理器 - MPU 140MHz 125MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MCF5249VM140 | 功能描述:IC MPU 32B 140MHZ COLDF 160-BGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MCF524x 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB（8K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285 |
| MCF5251 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microprocessor |
| MCF5251_07 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microprocessor Data Sheet |
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