參數(shù)資料
型號: 68HC05J5A
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁數(shù): 66/106頁
文件大?。?/td> 1069K
代理商: 68HC05J5A
GENERAL RELEASE SPECIFICATION
July 16, 1999
MOTOROLA
9-8
16-BIT TIMER
MC68HC05J5A
REV 2.1
Reading the ICH inhibits further captures until the ICL is also read. Reading the
ICL after reading the timer status register (T1SR) clears the ICF flag bit. does not
inhibit transfer of the free-running counter. There is no conflict between reading
the ICL and transfers from the free-running timer counters. The input capture reg-
isters always contain the free-running timer counter value which corresponds to
the most recent input capture.
NOTE
To prevent interrupts from occurring between readings of the ICH and ICL, set the
I bit in the condition code register (CCR) before reading ICH and clear the I bit
after reading ICL.
9.4
TIMER1 CONTROL REGISTER (T1CR)
The timer control register is shown in
Figure 9-11
performs the following func-
tions:
Enables input capture interrupts
Enables output compare interrupts
Enables timer overflow interrupts
Control the active edge polarity of the TCAP signal on pin PB0/TCAP
Reset clears all the bits in the T1CR with the exception of the IEDG bit which is
unaffected.
ICIE - INPUT CAPTURE INTERRUPT ENABLE
This read/write bit enables interrupts caused by an active signal on the PB0/
TCAP pin. Reset clears the ICIE bit.
1 =
Input capture interrupts enabled.
0 =
Input capture interrupts disabled.
T1OIE - TIMER OVERFLOW INTERRUPT ENABLE
This read/write bit enables interrupts caused by a timer1 overflow. Reset clears
the T1OIE bit.
1 =
Timer1 overflow interrupts enabled.
0 =
Timer1 overflow interrupts disabled.
BIT 7
BIT 6
0
BIT 5
BIT 4
0
BIT 3
0
BIT 2
0
BIT 1
BIT 0
0
T1CR
$0012
R
W
ICIE
T1OIE
IEDG
reset:
0
0
0
0
0
0
U
0
U = UNAFFECTED BY RESET
Figure 9-11. Timer Control Register (T1CR)
相關PDF資料
PDF描述
68HC705J5A 8-Bit Microcontroller Units (MCU).(8位微控制器)
68HRC05J5A 8-Bit Microcontroller Units (MCU).(8位微控制器)
68HRC705J5A 8-Bit Microcontroller Units (MCU).(8位微控制器)
68HC05K0 8-Bit Microcontroller Units (MCU).(8位微控制器)
68HC05PL4 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數(shù)
參數(shù)描述
68HC05JB3 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-bit microcontroller units (MCUs)
68HC05JB4 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:68HC05JB4
68HC05K3DW 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller
68HC05K3P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller
68HC05L5 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:General Release Specification