- 您现在的位置：买卖IC网 > PDF目录45029 > M37210E4SP 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP52 PDF资料下载
参数资料
| 型号： | M37210E4SP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
| 封装： | 0.600 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-52 |
| 文件页数： | 3/59页 |
| 文件大小： | 764K |
| 代理商： | M37210E4SP |
第1页第2页当前第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
MITSUBISHI MICROCOMPUTERS
M37210M3-XXXSP/FP, M37210M4-XXXSP, M37211M2-XXXSP
M37210E4-XXXSP/FP, M37210E4SP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
11
Fig. 6 Structure of timer-related registers
TIMERS
The M37210M3-XXXSP has 4 timers: timer 1, timer 2, timer 3 and
timer 4. All timers are 8-bit timers with the 8-bit timer latch. The timer
block diagram is shown in Figure 7.
All of the timers count down and their divide ratio is 1/(n+1), where n
is the value of timer latch. The value is set to a timer at the same time
by writing a count value to the corresponding timer latch (addresses
00F016 to 00F316 : timers 1 to 4).
The count value is decremented by 1. The timer interrupt request bit
is set to “1” by an timer overflow at the next count pulse after the
count value reaches “0016.”
(1) Timer 1
Timer 1 can select one of the following count sources:
f(XIN)/16
f(XIN)/4096
The count source of timer 1 is selected by setting bit 0 of the timer 12
mode register (address 00F416).
Timer 1 interrupt request occurs at timer 1 overflow.
(2) Timer 2
Timer 2 can select one of the following count sources:
f(XIN)/16
Timer 1 overflow signal
External clock from the P32/TIM2 pin
The count source of timer 2 is selected by setting bits 4 and 1 of the
timer 12 mode register (address 00F416). When timer 1 overflow
signal is a count source for the timer 2, the timer 1 functions as an 8-
bit prescaler.
Timer 2 interrupt request occurs at timer 2 overflow.
(3) Timer 3
Timer 3 can select one of the following count sources:
f(XIN)/16
External clock from the P33/TIM3 pin and the HSYNC pin
The count source of timer 3 is selected by setting bits 5 and 0 of the
timer 34 mode register (address 00F516).
Timer 3 interrupt request occurs at timer 3 overflow.
(4) Timer 4
Timer 4 can select one of the following count sources:
f(XIN)/16
f(XIN)/2
Timer 3 overflow signal
The count source of timer 3 is selected by setting bits 4 and 1 of the
timer 34 mode register 2 (address 00F516). When timer 3 overflow
signal is a count source for the timer 4, the timer 3 functions as an 8-
bit prescaler.
Timer 4 interrupt request occurs at timer 4 overflow.
At reset, timers 3 and 4 are connected by hardware and “FF16” is
automatically set in timer 3; “0716” in timer 4. The f(XIN)/16 is se-
lected as the timer 3 count source. The internal reset is released by
timer 4 overflow at these state, the internal clock is connected .
At execution of the STP instruction, timers 3 and 4 are connected by
hardware and “FF16” is automatically set in timer 3; “0716” in timer 4.
However, the f(XIN)16 is not selected as the timer 3 count source. So
set bit 0 of the timer 34 mode register (address 00F516) to “0” before
the execution of the STP instruction (f(XIN)16 is selected as the timer
3 count source). The internal STP state is released by timer 4 over-
flow at these state, the internal clock is connected .
Because of this, the program starts with stable clock.
The structure of timer-related registers is shown in Figure 6.
Timer 2 internal count source
selection bit
0 : f (XIN ) /16
1 : Timer 1 overflow signal
Timer 2 count stop bit
0 : Operation
1 : stop
Timer 1 count stop bit
0 : Operation
1 : Stop
Timer 2 count source selection bit
0 : Internal clock source
1 : External clock source from P32/TIM2 pin
Timer 1 count source selection bit
0 : f (XIN ) /16
1 : 1024
s clock
Timer 12 mode register
(TM12MR : address 00F416 )
70
Timer 3 count source selection bit
0 : f (XIN ) /16
1 : External clock source (bits)
Timer 34 mode register
(TM34MR : address 00F516 )
Timer 4 internal count source
selection bit
0 : Timer 3 overflow signal
1 : f (XIN ) /16
Timer 3 count stop bit
0 : Operation
1 : Stop
Timer 4 count stop bit
0 : Operation
1 : Stop
Timer 4 count source selection bit
0 : Internal clock source
1 : f (XIN ) /2
70
Timer 3 external count source
selection bit
0 : P33 /TIM3 pin input
1 : HSYNC pin input
Fix this bit to “0”
相关PDF资料 |
PDF描述 |
|---|---|
| M37210M3-XXXFP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PQFP64 |
| M37211M2-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
| M37210E4-XXXSP | 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
| M37212EFFP | 8-BIT, OTPROM, MICROCONTROLLER, PQFP80 |
| M37212M4-XXXSP | 8-BIT, MROM, MICROCONTROLLER, PDIP52 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37210E4-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37210E4-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37210M3 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37210M3-010SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37210M3-506SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
发布紧急采购，3分钟左右您将得到回复。