參數(shù)資料
型號(hào)： uPSD3234BV-24U6T
廠商： 意法半導(dǎo)體
英文描述： Flash Programmable System Devices with 8032 Microcontroller Core
中文描述： 閃存可編程系統(tǒng)設(shè)備與8032微控制器內(nèi)核
文件頁數(shù)： 54/170頁
文件大?。?/td> 2717K
代理商： UPSD3234BV-24U6T
uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV
54/170
Table 41. Description of the T2CON Bits
Note: 1. The RCLK1 and TCLK1 Bits in the PCON Register control UART 2, and have the same function as RCLK and TCLK.
Table 42. Timer/Counter2 Operating Modes
Note:
↓
= falling edge
Bit
Symbol
Function
7
TF2
Timer 2 overflow flag. Set by a Timer 2 overflow, and must be cleared by software. TF2
will not be set when either (RCLK, RCLK1)=1 or (TCLK, TCLK)=1
6
EXF2
Timer 2 external flag set when either a capture or reload is caused by a negative
transition on T2EX and EXEN2=1. When Timer 2 Interrupt is enabled, EXF2=1 will
cause the CPU to vector to the Timer 2 Interrupt routine. EXF2 must be cleared by
software
5
RCLK
(1)
Receive clock flag (UART 1). When set, causes the serial port to use Timer 2 overflow
pulses for its receive clock in Modes 1 and 3. TCLK=0 causes Timer 1 overflow to be
used for the receive clock
4
TCLK
(1)
Transmit clock flag (UART 1). When set, causes the serial port to use Timer 2 overflow
pulses for its transmit clock in Modes 1 and 3. TCLK=0 causes Timer 1 overflow to be
used for the transmit clock
3
EXEN2
Timer 2 external enable flag. When set, allows 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.
EXEN2=0 causes Time 2 to ignore events at T2EX
2
TR2
Start/stop control for Timer 2. A logic 1 starts the timer
1
C/T2
Timer or Counter select for Timer 2. Cleared for timer operation (input from internal
system clock, t
CPU
); set for external event counter operation (negative edge triggered)
0
CP/RL2
Capture/reload flag. When set, capture will occur on negative transition of T2EX if
EXEN2=1. When cleared, auto-reload will occur either with TImer 2 overflows, or
negative transitions of T2EX when EXEN2=1. When either (RCLK, RCLK1)=1 or (TCLK,
TCLK)=1, this bit is ignored, and timer is forced to auto-reload on Timer 2 overflow
Mode
T2CON
T2MOD
DECN
T2CON
EXEN
P1.1
T2EX
Remarks
Input Clock
RxCLK
or
TxCLK
CP/
RL2
TR2
Internal
External
(P1.0/T2)
16-bit
Auto-
reload
0
0
1
0
0
x
reload upon overflow
f
OSC
/12
MAX
f
OSC
/24
0
0
1
0
1
↓
reload trigger (falling edge)
0
0
1
1
x
0
Down counting
0
0
1
1
x
1
Up counting
16-bit
Capture
0
1
1
x
0
x
16-bit Timer/Counter
(only up counting)
f
OSC
/12
MAX
f
OSC
/24
0
1
1
x
1
↓
Capture (TH1,TL2)
→
(RCAP2H,RCAP2L)
Baud Rate
Generator
1
x
1
x
0
x
No overflow interrupt
request (TF2)
f
OSC
/12
MAX
f
OSC
/24
1
x
1
x
1
↓
Extra External Interrupt
(Timer 2)
Off
x
x
0
x
x
x
Timer 2 stops
—
—
相關(guān)PDF資料
PDF描述
uPSD3234BV-40U1T Flash Programmable System Devices with 8032 Microcontroller Core
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