參數(shù)資料
型號: W78IRD2A
廠商: WINBOND ELECTRONICS CORP
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 36/76頁
文件大?。?/td> 646K
代理商: W78IRD2A
W78IRD2/W78IRD2A
- 36 -
RCLK+TCLK=0,
RL2
CP/
=T2CON.0=1
1/6
1/12
T2M = CKCON.5
1
C/T2 = T2CON.1
T2CON.7
T2 = P1.0
T2CON.6
TR2 = T2CON.2
T2EX = P1.1
EXEN2 = T2CON.3
EXF2
Timer 2
Interrupt
TF2
TH2
TL2
RCAP2H
RCAP2L
0
0
1
osc
Figure 9-4 16-Bit Capture Mode
Auto-reload Mode, Counting up
This mode is enabled by clearing the
mode, Timer 2 is a 16-bit up-counter. When the counter rolls over from FFFFh to 0000h, the contents
of RCAP2L and RCAP2H are automatically reloaded into TL2 and TH2, and the timer overflow bit TF2
is set. If the EXEN2 bit is set, then a negative transition of T2EX pin also causes a reload, which also
sets the EXF2 bit in T2CON.
RL2
CP/
bit in T2CON and the DCEN bit in T2MOD. In this
RCLK+TCLK=0,
RL2
CP/
=T2CON.0=0, DCEN=0
1/6
1/12
T2M = CKCON.5
1
C/T2 = T2CON.1
0
T2CON.7
T2 = P1.0
T2CON.6
TR2 =
T2CON.2
T2EX = P1.1
EXEN2 = T2CON.3
EXF2
Timer 2
Interrupt
TF2
TH2
TL2
RCAP2
H
RCAP2L
0
1
osc
Figure 9-5 16-Bit Auto-reload Mode, Counting Up
Auto-reload Mode, Counting Up/Down
This mode is enabled when the
this mode, Timer 2 is an up/down-counter whose direction is controlled by the T2EX pin (1 = up, 0 =
down). When Timer 2 overflows while counting up, the counter is reloaded by RCAP2L and RCAP2H.
When Timer 2 is counting down, the counter is reloaded with FFFFh when Timer 2 is equal to
RCAP2L and RCAP2H. In either case, the timer overflow bit TF2 is set, and the EXF2 bit is toggled,
though EXF2 can not generate an interrupt in this mode.
RL2
CP/
bit in T2CON is clear and the DCEN bit in T2MOD is set. In
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