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參數(shù)資料
| 型號(hào)： | T89C51RD2-SLSIL |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 27/104頁 |
| 文件大?。?/td> | 798K |
| 代理商： | T89C51RD2-SLSIL |
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27
T89C51RD2
4243G
–
8051
–
05/03
The last bit in the register ECOM (CCAPMn.6) when set enables the comparator
function.
Table 13 shows the CCAPMn settings for the various PCA functions.
.
Table 12.
CCAPMn: PCA Modules Compare/Capture Control Registers
Table 13.
PCA Module Modes (CCAPMn Registers)
CCAPMn
Address
n = 0 - 4
CCAPM0=0DAH
CCAPM1=0DBH
CCAPM2=0DCH
CCAPM3=0DDH
CCAPM4=0DEH
-
ECO
Mn
CAPP
n
CAPN
n
MATn
TOGn
PWM
m
ECCF
n
Reset value
X
0
0
0
0
0
0
0
Symbol
Function
-
Not implemented, reserved for future use.
(1)
1.
User software should not write 1s to reserved bits. These bits may be used in future 8051
family products to invoke new features. In that case, the reset or inactive value of the
new bit will be 0, and its active value will be 1. The value read from a reserved bit is
indeterminate.
ECOMn
Enable Comparator. ECOMn = 1 enables the comparator function.
CAPPn
Capture Positive, CAPPn = 1 enables positive edge capture.
CAPNn
Capture Negative, CAPNn = 1 enables negative edge capture.
MATn
Match. When MATn = 1, a match of the PCA counter with this module
’
s compare/capture
register causes the CCFn bit in CCON to be set, flagging an interrupt.
TOGn
Toggle. When TOGn = 1, a match of the PCA counter with this module
’
s compare/capture
register causes the CEXn pin to toggle.
PWMn
Pulse Width Modulation Mode. PWMn = 1 enables the CEXn pin to be used as a pulse
width modulated output.
ECCFn
Enable CCF interrupt. Enables compare/capture flag CCFn in the CCON register to
generate an interrupt.
ECOMn
CAPPn
CAPNn
MATn
TOGn
PWMm
ECCFn
Module Function
0
0
0
0
0
0
0
No Operation
X
1
0
0
0
0
X
16-bit capture by a positive-edge
trigger on CEXn
X
0
1
0
0
0
X
16-bit capture by a negative trigger
on CEXn
X
1
1
0
0
0
X
16-bit capture by a transition on
CEXn
1
0
0
1
0
0
X
16-bit Software Timer / Compare
mode.
1
0
0
1
1
0
X
16-bit High Speed Output
1
0
0
0
0
1
0
8-bit PWM
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| T89C51RD2-SLTC-M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
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