參數(shù)資料
型號: MC68HC05G3
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 6/128頁
文件大?。?/td> 290K
代理商: MC68HC05G3
Page 93
Section 8: TIMER SYSTEM
MOTOROLA
MC68HC05G3 (705G4) Specification Rev. 1.1
8.5
TIMER REGISTERS
The timers have 14 registers and four rate select bits are added into the TBCR1 register.
The 10 registers of timer 1 are compatible with the registers of MC68HC05C4. Refer to the
C4 specifications for details on these registers.
8.5.1
TIMER CONTROL REGISTER 2 (TCR2)
READ:
anytime
WRITE:
anytime
TI2IE
Timer Input 2 Interrupt Enable
TI2IE bit enables timer input 2 (EVI) interrupt when TI2F is set. This bit is cleared
at reset.
0 - Timer input 2 interrupt is disabled
1 - Timer input 2 interrupt is enabled
OC2IE
Compare 2 Interrupt Enable
OC2IE bit enables compare 2 (CMP2) interrupt when compare match is detected
(OC2F is set). This bit is cleared at reset.
0 - Compare 2 interrupt is disabled
1 - Compare 2 interrupt is enabled
BIT 5
Reserved
This bit is not used and always read as zero.
T2CLK
Timer 2 Clock Select
The T2CLK bit selects clock source for the timer counter 2. This bit is cleared at
reset.
0 - CLK2 from prescaler is selected
1 - EXCLK from EVI input block is selected
IM2
Timer Input 2 Mode Select
The IM2 bit selects whether EVI input is gated by CLK2 or not gated by CLK2.
This bit is cleared at reset.
0 - EVI is not gated by CLK2 (event mode)
1 - EVI is gated by CLK2 (gated mode)
TI2IE
$001C
OC2IE
0
T2CLK
IM2
IL2
OE2
OL2
TCR2
B7
B6
B5
B4
B3
B2
B1
B0
00000000
RESET:
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