- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25639 > MC80C52XXX-16SHXXX (ATMEL CORP) 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 PDF資料下載
參數(shù)資料
| 型號： | MC80C52XXX-16SHXXX |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| 封裝： | 0.600 INCH, SIDE BRAZED, DIP-40 |
| 文件頁數(shù)： | 40/80頁 |
| 文件大?。?/td> | 5152K |
| 代理商： | MC80C52XXX-16SHXXX |
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頁第39頁當前第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
240
XMEGA A [MANUAL]
8077I–AVR–11/2012
21.8.3 Asynchronous Operational Range
The operational range of the receiver is dependent on the mismatch between the received bit rate and the internally
generated baud rate. If an external transmitter is sending using bit rates that are too fast or too slow, or if the internally
generated baud rate of the receiver does not match the external source’s base frequency, the receiver will not be able to
synchronize the frames to the start bit.
The following equations can be used to calculate the ratio of the incoming data rate and internal receiver baud rate.
Table 21-3 and Table 21-4 on page 240 list the maximum receiver baud rate error that can be tolerated. Normal speed
mode has higher tolerance of baud rate variations
Table 21-3. Recommended maximum receiver baud rate error for normal speed mode.
Table 21-4. Recommended maximum receiver baud rate error for double speed mode.
D
:
Sum of character size and parity size (D = 5 to 10 bits).
S
:
Samples per bit. S = 16 for normal speed mode and S = 8 for double speed mode.
SF
:
First sample number used for majority voting. SF = 8 for normal speed mode and SF = 4 for double speed mode.
SM
:
Middle sample number used for majority voting. SM = 9 for normal speed mode and SM = 5 for double speed
mode.
Rslow
:
The ratio of the slowest incoming data rate that can be accepted in relation to the receiver baud rate.
Rfast
:
The ratio of the fastest incoming data rate that can be accepted in relation to the receiver baud rate.
D
#(Data + Parity Bit)
Rslow [%]
Rfast [%]
Max total error [%]
Recommended max
receiver error [%]
5
93.20
106.67
+6.67/-6.80
± 3.0
6
94.12
105.79
+5.79/-5.88
± 2.5
7
94.81
105.11
+5.11/-5.19
± 2.0
8
95.36
104.58
+4.58/-4.54
± 2.0
9
95.81
104.14
+4.14/-4.19
± 1.5
10
96.17
103.78
+3.78/-3.83
± 1.5
D
#(Data + Parity Bit)
R
slow [%]
R
fast [%]
Max Total Error [%]
Recommended Max
Receiver Error [%]
5
94.12
105.66
+5.66/-5.88
± 2.5
6
94.92
104.92
+4.92/-5.08
± 2.0
7
95.52
104.35
+4.35/-4.48
± 1.5
8
96.00
103.90
+3.90/-4.00
± 1.5
9
96.39
103.53
+3.53/-3.61
± 1.5
10
96.70
103.23
+3.23/-3.30
± 1.0
R
slow
D
1
+
S
1
–
DS
S
F
++
------------------------------------------
=
R
fast
D
2
+
S
D
1
+
SS
M
+
-----------------------------------
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MD80C52EXXX-20 | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40 |
| MR80C52CXXX-12SHXXX | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44 |
| MC80C52CXXX-12SB | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40 |
| MQ80C32-25SCD | 8-BIT, 25 MHz, MICROCONTROLLER, CQFP44 |
| MQ80C32E-20SHXXX:D | 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC80D21000G | 制造商:COR 功能描述:RN |
| MC80F0104 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0104B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0104D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0204 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
發(fā)布緊急采購，3分鐘左右您將得到回復。