參數(shù)資料
型號(hào): MC68HC05J1AVDWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封裝: SOIC-20
文件頁數(shù): 95/126頁
文件大?。?/td> 1118K
代理商: MC68HC05J1AVDWR2
Technical Data
MC68HC05J1A — Rev. 1.0
70
Multifunction Timer
MOTOROLA
Multifunction Timer
Figure 8-1. Multifunction Timer Block Diagram
TIMER COUNTER REGISTER ($0009)
LEAST SIGNIFICANT 8 BITS
OF 15-STAGE RIPPLE COUNTER
OVERFLOW
÷ 4
INTERNAL CLOCK
(XTAL
÷ 2)
TIMER STATUS/CONTROL REGISTER ($0008)
TO
F
R
TIF
T
OIE
R
TIE
T
OFR
R
TIFR
RT
1
RT
0
RTI RATE SELECT
÷ 2
POWER-ON
RESET (POR)
MOST SIGNIFICANT 7 BITS OF 15-STAGE RIPPLE COUNTER
÷ 2
S
R
Q
INTERRUPT
REQUEST
COP WATCHDOG RESET
INTERNAL
D
AT
A
B
U
S
INTERNAL
DATA BUS
CLEAR COP WATCHDOG
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