参数资料
型号: ADUC834BSZ
厂商: Analog Devices Inc
文件页数: 52/80页
文件大小: 0K
描述: IC ADC DUAL16/24BIT W/MCU 52MQFP
产品培训模块: Process Control
标准包装: 1
系列: MicroConverter® ADuC8xx
核心处理器: 8052
芯体尺寸: 8-位
速度: 12.58MHz
连通性: EBI/EMI,I²C,SPI,UART/USART
外围设备: POR,PSM,PWM,温度传感器,WDT
输入/输出数: 34
程序存储器容量: 62KB(62K x 8)
程序存储器类型: 闪存
EEPROM 大小: 4K x 8
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.25 V
数据转换器: A/D 3x16b,4x24b; D/A 1x12b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 52-QFP
包装: 托盘
产品目录页面: 738 (CN2011-ZH PDF)
REV. A
–56–
ADuC834
T2CON
Timer/Counter 2 Control Register
SFR Address
C8H
Power-On Default Value
00H
Bit Addressable
Yes
Table XXIX. T2CON SFR Bit Designations
Bit
Name
Description
7
TF2
Timer 2 Overflow Flag.
Set by hardware on a Timer 2 overflow. TF2 will not be set when either RCLK or TCLK = 1.
Cleared by user software.
6
EXF2
Timer 2 External Flag.
Set by hardware when either a capture or reload is caused by a negative transition on T2EX and
EXEN2 = 1.
Cleared by user software.
5
RCLK
Receive Clock Enable Bit.
Set by user to enable the serial port to use Timer 2 overflow pulses for its receive clock in serial port
Modes 1 and 3.
Cleared by user to enable Timer 1 overflow to be used for the receive clock.
4
TCLK
Transmit Clock Enable Bit.
Set by user to enable the serial port to use Timer 2 overflow pulses for its transmit clock in serial port
Modes 1 and 3.
Cleared by user to enable Timer 1 overflow to be used for the transmit clock.
3
EXEN2
Timer 2 External Enable Flag.
Set by user to enable a capture or reload to occur as a result of a negative transition on T2EX if Timer 2
is not being used to clock the serial port.
Cleared by user for Timer 2 to ignore events at T2EX.
2
TR2
Timer 2 Start/Stop Control Bit.
Set by user to start Timer 2.
Cleared by user to stop Timer 2.
1
CNT2
Timer 2 Timer or Counter Function Select Bit.
Set by user to select counter function (input from external T2 Pin).
Cleared by user to select timer function (input from on-chip core clock).
0
CAP2
Timer 2 Capture/Reload Select Bit.
Set by user to enable captures on negative transitions at T2EX if EXEN2 = 1.
Cleared by user to enable auto reloads with Timer 2 overflows or negative transitions at T2EX when
EXEN2 = 1. When either RCLK = 1 or TCLK = 1, this bit is ignored and the timer is forced to
autoreload on Timer 2 overflow.
Timer/Counter 2 Data Registers
Timer/Counter 2 also has two pairs of 8-bit data registers associated with it. These are used as both timer data registers and timer
capture/reload registers.
TH2 and TL2
Timer 2, data high byte and low byte.
SFR Address = CDH, CCH, respectively.
RCAP2H and RCAP2L
Timer 2, Capture/Reload byte and low byte.
SFR Address = CBH, CAH, respectively.
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