- 您现在的位置：买卖IC网 > PDF目录199412 > TMP86CH09NG 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32 PDF资料下载
参数资料
| 型号： | TMP86CH09NG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32 |
| 封装： | 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32 |
| 文件页数： | 16/120页 |
| 文件大小： | 1743K |
| 代理商： | TMP86CH09NG |
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页当前第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页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页
Page 101
TMP86FH09ANG
9.3.9 Warm-Up Counter Mode
In this mode, the warm-up period time is obtained to assure oscillation stability when the system clocking is
switched between the high-frequency and low-frequency. The timer counter 3 and 4 are cascadable to form a
16-bit TimerCouter. The warm-up counter mode has two types of mode; switching from the high-frequency to
low-frequency, and vice-versa.
Note 1: In the warm-up counter mode, fix TCiCR<TFFi> to 0. If not fixed, the PDOi, PWMi and PPGi pins may output
pulses.
Note 2: In the warm-up counter mode, only upper 8 bits of the timer register TTREG4 and 3 are used for match
detection and lower 8 bits are not used.
Note 3: i = 3, 4
9.3.9.1 Low-Frequency Warm-up Counter Mode
(NORMAL1
→ NORMAL2 → SLOW2 → SLOW1)
In this mode, the warm-up period time from a stop of the low-frequency clock fs to oscillation stability
is obtained. Before starting the timer, set SYSCR2<XTEN> to 1 to oscillate the low-frequency clock.
When a match between the up-counter and the timer register (TTREG4, 3) value is detected after the timer
is started by setting TC4CR<TC4S> to 1, the counter is cleared by generating the INTTC4 interrupt
request. After stopping the timer in the INTTC4 interrupt service routine, set SYSCR2<SYSCK> to 1 to
switch the system clock from the high-frequency to low-frequency, and then clear of SYSCR2<XTEN> to
0 to stop the high-frequency clock.
Table 9-8 Setting Time of Low-Frequency Warm-Up Counter Mode (fs = 32.768 kHz)
Maximum Time Setting
(TTREG4, 3 = 0100H)
Maximum Time Setting
(TTREG4, 3 = FF00H)
7.81 ms
1.99 s
Example :After checking low-frequency clock oscillation stability with TC4 and 3, switching to the SLOW1 mode
SET
(SYSCR2).6
: SYSCR2<XTEN>
← 1
LD
(TC3CR), 43H
: Sets TFF3=0, source clock fs, and 16-bit mode.
LD
(TC4CR), 05H
: Sets TFF4=0, and warm-up counter mode.
LD
(TTREG3), 8000H
: Sets the warm-up time.
(The warm-up time depends on the oscillator characteristic.)
DI
: IMF
← 0
SET
(EIRH). 3
: Enables the INTTC4.
EI
: IMF
← 1
SET
(TC4CR).3
: Starts TC4 and 3.
:
PINTTC4:
CLR
(TC4CR).3
: Stops TC4 and 3.
SET
(SYSCR2).5
: SYSCR2<SYSCK>
← 1
(Switches the system clock to the low-frequency clock.)
CLR
(SYSCR2).7
: SYSCR2<XEN>
← 0 (Stops the high-frequency clock.)
RETI
:
VINTTC4:
DW
PINTTC4
: INTTC4 vector table
相关PDF资料 |
PDF描述 |
|---|---|
| TMP86CM29BU | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| TMP86FH09NG | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDIP32 |
| TMP86FS49BUG | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64 |
| TMP86PS25F | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| TMP87C800N | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TMP86CH12MG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller |
| TMP86CH21AUG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller |
| TMP86CH21F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:CMOS 8-Bit Microcontroller |
| TMP86CH21U | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:CMOS 8-Bit Microcontroller |
| TMP86CH22UG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。