參數(shù)資料
型號: MC68HLC705KJ1CP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
封裝: PLASTIC, DIP-16
文件頁數(shù): 99/117頁
文件大?。?/td> 1644K
代理商: MC68HLC705KJ1CP
Multifunction Timer Module
Data Sheet
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 4.0
82
Multifunction Timer Module
MOTOROLA
Figure 9-2. Multifunction Timer Block Diagram
9.4 Interrupts
The following timer sources can generate interrupts:
Timer overflow flag (TOF) — The TOF bit is set when the first eight stages
of the counter roll over from $FF to $00. The timer overflow interrupt enable
bit, TOIE, enables TOF interrupt requests.
Real-time interrupt flag (RTIF) — The RTIF bit is set when the selected RTI
output becomes active. The real-time interrupt enable bit, RTIE, enables
RTIF interrupt requests.
CLEAR
COP
TIMER
TIMER COUNTER REGISTER
BITS [0:7] OF 15-STAGE
OVERFLOW
INTERNAL CLOCK
(XTAL
÷ 2)
TIMER STATUS/CONTROL REGISTER
TO
F
RT
IF
TO
IE
RT
IE
TO
F
R
RT
IF
R
RT
1
RT
0
RTI RATE SELECT
÷ 2
BITS [8:14] OF 15-STAGE RIPPLE COUNTER
÷ 8
S
R
Q
INTERRUPT
REQUEST
COP RESET
INT
ERNAL
D
AT
A
B
U
S
RESET
RIPPLE COUNTER
RESET
÷ 4
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