參數(shù)資料
型號: MC68HC05SB7
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: MO-150, SSOP-28
文件頁數(shù): 124/170頁
文件大?。?/td> 2161K
代理商: MC68HC05SB7
August 27, 1998
GENERAL RELEASE SPECIFICATION
MC68HC05SB7
CORE TIMER
MOTOROLA
REV 2.1
9-1
SECTION 9
CORE TIMER
This section describes the operation of the Core Timer and the Computer
Operating Properly (COP) watchdog timer. Figure 9-1 shows a block diagram of
the Core Timer.
Figure 9-1. Core Timer Block Diagram
BITS 0–7 OF 15-STAGE
INTERNAL
D
A
T
A
B
U
S
RIPPLE (COUNT-UP) COUNTER
COP REGISTER
RTI RATE SELECT
÷ 2
S
R
Q
RESET
COP
WATCHDOG
RESET
POWER-ON
RESET
fOP ÷1024
CT
OF
R
TIF
CT
OFE
R
TIE
CT
OFR
R
TIFR
RT
1
RT
0
CORE TIMER
REQUEST
INTERRUPT
CORE TIMER STATUS/CONTROL REGISTER
COPC
÷ 2
RESET
CORE TIMER COUNTER REGISTER
OVERFLOW
RESET
÷ 4
OSC1 (fOSC)
÷ 2
INTERNAL
CLOCK (fOP)
$0009
$0008
$1FF0
fOP ÷2
14
fOP ÷2
17
fOP ÷2
16
fOP ÷2
15
相關(guān)PDF資料
PDF描述
MC68HC705SB7 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05SU3AB 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP42
MC68HC05T2P 8-BIT, MROM, MICROCONTROLLER, PDIP40
MC68HC08AS32CFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
MC68HC08AS32VFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05SC24 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Secure 8-bit microcomputer with EEPROM
MC68HC05SR3 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units
MC68HC05SU3A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core
MC68HC05T16 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05V12 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit