參數(shù)資料
型號(hào)： S80C32-44:RD
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 44 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 51/152頁
文件大?。?/td> 2528K
144
2486AA–AVR–02/2013
ATmega8(L)
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 the Transmitter is sending frames at too fast or too
slow bit rates, or the internally generated baud rate of the Receiver does not have a similar (see
Table 53) 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.
D
Sum of character size and parity size (D = 5-bit to 10-bit)
S
Samples per bit. S = 16 for Normal Speed mode and S = 8 for Double Speed mode
S
F
First sample number used for majority voting. S
F = 8 for Normal Speed and SF = 4 for
Double Speed mode
S
M
Middle sample number used for majority voting. S
M = 9 for Normal Speed and SM = 5 for
Double Speed mode
R
slow is the ratio of the slowest incoming data rate that can be accepted in relation to the
Receiver baud rate. R
fast is the ratio of the fastest incoming data rate that can be
accepted in relation to the Receiver baud rate
Table 53 and Table 54 list the maximum Receiver baud rate error that can be tolerated. Note
that Normal Speed mode has higher toleration of baud rate variations.
Table 53. Recommended Maximum Receiver Baud Rate Error for Normal Speed Mode
(U2X = 0)
D#
(Data + Parity Bit)
Rslow
(%)
Rfast
(%)
Max Total
Error (%)
Recommended Max
Receiver Error (%)
5
93.20
106.67
+6.67/-6.8
±3.0
6
94.12
105.79
+5.79/-5.88
±2.0
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
Table 54. Recommended Maximum Receiver Baud Rate Error for Double Speed Mode
(U2X = 1)
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
Rslow
D 1
+
S
S 1
–
DS
SF
++
-------------------------------------------
=
Rfast
D 2
+
S
D 1
+
SS
M
+
-----------------------------------
=
相關(guān)PDF資料
PDF描述
MQ80C52XXX-36/883 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQFP44
S80C32-L16D 8-BIT, 16 MHz, MICROCONTROLLER, PQCC44
MP80C51C-36D 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PDIP40
MR80C52EXXX-16SHXXX:R 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQCC44
MD83C154DCXXX-25P883D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S80C32-L16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
S80C32-L16R 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
S80C376CB8 WAF 制造商:Intel 功能描述:
S80C42 制造商:Intel 功能描述:
S80C51 WAF 制造商:Intel 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*