- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381451 > AT43USB320A-AC (ATMEL CORP) Full-speed USB Microcontroller with an Embedded Hub PDF資料下載
參數(shù)資料
| 型號： | AT43USB320A-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Full-speed USB Microcontroller with an Embedded Hub |
| 中文描述： | 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, MS-026AED, LQFP-100 |
| 文件頁數(shù)： | 39/115頁 |
| 文件大?。?/td> | 722K |
| 代理商： | AT43USB320A-AC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁當(dāng)前第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁
39
AT43USB320A
1443E–USB–4/04
8-bit
Timer/Counter0
The 8-bit Timer/Counter0 can select clock source from CK, prescaled CK or an external pin. In
addition it can be stopped as described in the specification for the Timer/Counter0 Control
Register (TCCR0). The overflow status flag is found in the Timer/Counter Interrupt Flag Regis-
ter (TIFR). Control signals are found in the Timer/Counter0 Control Register (TCCR0). The
interrupt enable/disable settings for Timer/Counter0 are found in the Timer/Counter Interrupt
Mask Register - TIMSK.
When Timer/Counter0 is externally clocked, the external signal is synchronized with the oscil-
lator frequency of the CPU. To assure proper sampling of the external clock, the minimum
time between two external clock transitions must be at least one internal CPU clock period.
The external clock signal is sampled on the rising edge of the internal CPU clock.
The 8-bit Timer/Counter0 features both a high resolution and a high accuracy usage with the
lower prescaling opportunities. Similarly, the high prescaling opportunities make the
Timer/Counter0 useful for lower speed functions or exact timing functions with infrequent
actions.
Figure 10.
Timer/Counter0 Block Diagram
Control
Logic
Timer/Counter0
(TCNT0)
Timer Int. Mask Register
(TIMSK)
Timer Int. Flag Register
(TIFR)
T/C0 Control Register
(TCCR0)
T
O
O
T
T
T
O
O
I
T
C
C
C
T/C Clock Source
T
7
0
CK
T0
T/C0
Overflow IRQ
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT43USB321 | Full-speed USB Hub/Function Microcontroller |
| AT43USB325E-AC | Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB325E-AU | Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB326-AC | Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB326-AU | Multimedia USB Keyboard Controller with Embedded Hub |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB321 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Hub/Function Microcontroller |
| AT43USB324AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER |
| AT43USB324YC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER |
| AT43USB325 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
| AT43USB325_05 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。