參數(shù)資料
型號: AT87C51RB2-RLTUM
廠商: International Rectifier
英文描述: High Performance 8-bit Microcontroller
中文描述: 高性能8位微控制器
文件頁數(shù): 22/85頁
文件大小: 762K
代理商: AT87C51RB2-RLTUM
22
4188E–8051–08/06
AT/TS8xC51Rx2
Reset Value = 0000 0000b
Bit addressable
Table 6-3.
T2MOD Register
T2MOD - Timer 2 Mode Control Register (C9h)
6
5
Bit
Number
Bit
Mnemonic
Description
7
TF2
Timer 2 overflow Flag
Must be cleared by software.
Set by hardware on timer 2 overflow, if RCLK = 0 and TCLK = 0.
6
EXF2
Timer 2 External Flag
Set when a capture or a reload is caused by a negative transition on T2EX pin if
EXEN2=1.
When set, causes the CPU to vector to timer 2 interrupt routine when timer 2 interrupt is
enabled.
Must be cleared by software. EXF2 doesn’t cause an interrupt in Up/down counter mode
(DCEN = 1)
5
RCLK
Receive Clock bit
Clear to use timer 1 overflow as receive clock for serial port in mode 1 or 3.
Set to use timer 2 overflow as receive clock for serial port in mode 1 or 3.
4
TCLK
Transmit Clock bit
Clear to use timer 1 overflow as transmit clock for serial port in mode 1 or 3.
Set to use timer 2 overflow as transmit clock for serial port in mode 1 or 3.
3
EXEN2
Timer 2 External Enable bit
Clear to ignore events on T2EX pin for timer 2 operation.
Set to cause a capture or reload when a negative transition on T2EX pin is detected, if
timer 2 is not used to clock the serial port.
2
TR2
Timer 2 Run control bit
Clear to turn off timer 2.
Set to turn on timer 2.
1
C/T2#
Timer/Counter 2 select bit
Clear for timer operation (input from internal clock system: F
).
Set for counter operation (input from T2 input pin, falling edge trigger). Must be 0 for clock
out mode.
0
CP/RL2#
Timer 2 Capture/Reload bit
If RCLK=1 or TCLK=1, CP/RL2# is ignored and timer is forced to auto-reload on timer 2
overflow.
Clear to auto-reload on timer 2 overflows or negative transitions on T2EX pin if EXEN2=1.
Set to capture on negative transitions on T2EX pin if EXEN2=1.
7
4
3
2
1
0
-
-
-
-
-
-
T2OE
DCEN
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參數(shù)描述
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AT87C51RC2-3CSUL 功能描述:8位微控制器 -MCU OTP RC/32K 40MHZ 3V 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT