- 您现在的位置：买卖IC网 > PDF目录69027 > MC68HC05SR3FB (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44 PDF资料下载
参数资料
| 型号： | MC68HC05SR3FB |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | QFP-44 |
| 文件页数： | 46/96页 |
| 文件大小： | 3143K |
| 代理商： | MC68HC05SR3FB |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页当前第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页
Freescale
6-4
MC68HC05SR3
TIMER
6
PR2:PR0
These three bits enable the program to select the division ratio of the prescaler. On reset, these
three bits are set to “100”, which corresponds to a division ratio of 16.
6.3
Timer Data Register (TDR)
The TDR is a read/write register which contains the current value of the 8-bit count-down timer
counter when read. Reading this register does not disturb the counter operation.
6.4
Operation during Low Power Modes
The timer ceases counting in STOP mode. When STOP mode is exited by an external interrupt
(IRQ or IRQ2), the internal oscillator will resume its operation, followed by internal processor
stabilization delay. The timer is then cleared to zero and resumes its operation. The TIF bit in the
TCR will be set. To avoid generating a timer interrupt when exiting STOP mode, it is recommended
to set the TIM bit prior entering STOP mode. After exiting STOP mode TIF bit can then be cleared.
The CPU clock halts during the WAIT mode, but the timer remains active. If the interrupts are
enabled, the timer interrupt will cause the processor to exit the WAIT mode.
PR2
PR1
PR0
Divide Ratio
00
0
1
00
1
2
01
0
4
01
1
8
10
0
16
10
1
32
11
0
64
11
1
128
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
$08
TD7
TD6
TD5
TD4
TD3
TD2
TD1
TD0
1111 1111
TPG
48
05SR3.Book Page 4 Thursday, August 4, 2005 1:08 PM
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC05SR3CFB | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC05T7B | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| MC68HC05V12CFNR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC08AS20FNR2 | 8-BIT, MROM, MICROCONTROLLER, PQCC52 |
| MC68HC08AS20VFNR2 | 8-BIT, MROM, MICROCONTROLLER, PQCC52 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68HC05SU3A | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core |
| MC68HC05T16 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit |
| MC68HC05V12 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit |
| MC68HC05V12CFN | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05X16 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit |
发布紧急采购，3分钟左右您将得到回复。