參數(shù)資料
型號(hào)： SST89E54RD2A-40-I-NJE
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝： ROHS COMPLIANT, PLASTIC, MS-018AC, LCC-44
文件頁數(shù)： 50/84頁
文件大?。?/td> 1755K
代理商： SST89E54RD2A-40-I-NJE
54
Data Sheet
FlashFlex MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
SST89V54RD2A/RDA / SST89V58RD2A/RDA
2007 Silicon Storage Technology, Inc.
S71339-01-000
1/07
8.3.2 16-Bit Software Timer Mode
The 16-bit software timer mode is used to trigger interrupt
routines, which must occur at periodic intervals. It is setup
by setting both the ECOM and MAT bits in the module’s
CCAPMn register. The PCA timer will be compared to the
module’s capture registers (CCAPnL and CCAPnH) and
when a match occurs, an interrupt will occur, if the CCFn
(CCON SFR) and the ECCFn (CCAPMn SFR) bits for the
module are both set.
If necessary, a new 16-bit compare value can be loaded
into CCAPnH and CCAPnL during the interrupt routine.
The user should be aware that the hardware temporarily
disables the comparator function while these registers are
being updated so that an invalid match will not occur. Thus,
it is recommended that the user write to the low byte first
(CCAPnL) to disable the comparator, then write to the high
byte (CCAPnH) to re-enable it. If any updates to the regis-
ters are done, the user may want to hold off any interrupts
from occurring by clearing the EA bit. (See Figure 8-3)
FIGURE
8-3: PCA Compare Mode (Software Timer)
1339 F25.0
CF
CR
CCF4
CCF3
CCF2
CCF1
CCF0
ECOMn CAPPn CAPNn
MATn
TOGn
PWMn ECCFn
CCON
CCAPMn
n=0 to 4
PCA Interrupt
CH
CL
CCAPnH
CCAPnL
PCA Timer/Counter
0
00
0
16-bit Comparator
Reset
Write to
CCAPnL
Write to
CCAPnH
10
Enable
Match
相關(guān)PDF資料
PDF描述
SST89V54RD2A-33-C-TQJE 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44
SST89V58RD2-33-I-NJE 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC44
ST10F273M-4Q3 16-BIT, FLASH, 64 MHz, MICROCONTROLLER, PQFP144
ST19XS08 8-BIT, EEPROM, 10 MHz, MICROCONTROLLER, UUC
ST52513F3 MICROCONTROLLER, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SST89E54RD2RD 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89E54RD2-RD 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89E54RD-33-C-PIE 功能描述:8位微控制器 -MCU 24KB+1KB 33MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
SST89E54RD-40-C-PI 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU
SST89E54RD-40-C-PIE 功能描述:8位微控制器 -MCU 24KB+1KB 40MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*