參數(shù)資料
型號(hào): MC68L11F1PU3
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, EEPROM, MICROCONTROLLER, PQFP80
封裝: TQFP-80
文件頁(yè)數(shù): 64/68頁(yè)
文件大?。?/td> 486K
代理商: MC68L11F1PU3
MOTOROLA
64
MC68HC11F1/FC0
MC68HC11FTS/D
13 Pulse Accumulator
The pulse accumulator can be used either to count events or measure the duration of a particular event.
In event counting mode, the pulse accumulator’s 8-bit counter increments each time a specified edge
is detected on the pulse accumulator input pin, PA7. The maximum clocking rate for this mode is the E-
clock divided by two. In gated time accumulation mode, an internal clock increments the 8-bit counter
at a rate of E-clock
÷
64 while the input at PA7 remains at a predetermined logic level.
13.1 Pulse Accumulator Block Diagram
Figure 18 Pulse Accumulator Block Diagram
13.2 Pulse Accumulator Registers
Bits [7:4] in TMSK2 correspond bit for bit with flag bits in TFLG2. Setting any of these bits enables the
corresponding interrupt source.
TMSK2 —
Timer Interrupt Mask 2
$x024
Bit 7
6
5
4
3
2
1
Bit 0
TOI
RTII
PAOVI
PAII
0
0
PR1
PR0
RESET:
0
0
0
0
0
0
0
0
PACNT
8-BIT COUNTER
2:1
MUX
PA7/
PAI/OC1
ENABLE
OVERFLOW
1
INTERRUPT
REQUESTS
INTERNAL
DATA BUS
INPUT BUFFER
&
EDGE DETECTION
PACTL
CONTROL
TFLG2
STATUS FLAGS
TMSK2
P
P
P
P
P
P
P
OUTPUT
BUFFER
PAI EDGE
PAEN
E
÷
64 CLOCK
(FROM MAIN TIMER)
FROM
MAIN TIMER
OC1
PAEN
2
CLOCK
FROM
DDRA
INTERRUPT ENABLES
相關(guān)PDF資料
PDF描述
MC74AC00 QUAD 2-INPUT NAND GATE
MC74AC00 QUAD 2-INPUT NAND GATE
MC74ACT00 NPN Epitaxial Silicon Transistor
MC74AC00D QUAD 2-INPUT NAND GATE
MC74AC00N QUAD 2-INPUT NAND GATE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68L11K1FN2R2 制造商:Motorola Inc 功能描述:
MC68L11K1FUE2 功能描述:8位微控制器 -MCU 8B MCU L-VOLTAGE-EPP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68L711E9FN2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68L711E9FNE2 功能描述:8位微控制器 -MCU 8B MCU LO VOLTAGE RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68L711E9FU2 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: