參數(shù)資料
型號: SAB-C505CA-4EM
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, MQFP-44
文件頁數(shù): 34/85頁
文件大小: 335K
代理商: SAB-C505CA-4EM
Semiconductor Group
34
1997-12-01
C505 / C505C
C505A / C505CA
Compare Mode 1
If compare mode 1 is enabled and the software writes to the appropriate output latch at the port, the
new value will not appear at the output pin until the next compare match occurs. Thus, it can be
choosen whether the output signal has to make a new transition (1-to-0 or 0-to-1, depending on the
actual pin-level) or should keep its old value at the time when the timer value matches the stored
compare value.
In compare mode 1 (see
figure 13
) the port circuit consists of two separate latches. One latch
(which acts as a "shadow latch") can be written under software control, but its value will only be
transferred to the port latch (and thus to the port pin) when a compare match occurs.
Figure 13
Compare Function in Compare Mode 1
Timer 2 Capture Modes
Each of the compare/capture registers CC1 to CC3 and the CRC register can be used to latch the
current 16-bit value of the timer 2 registers TL2 and TH2. Two different modes are provided for this
function.
In mode 0, the external event causing a capture is :
– for CC registers 1 to 3: a positive transition at pins CC1 to CC3 of port 1
– for the CRC register:
a positive or negative transition at the corresponding pin, depending
on the status of the bit I3FR in SFR T2CON.
In mode 1 a capture occurs in response to a write instruction to the low order byte of a capture
register. The write-to-register signal (e.g. write-to-CRCL) is used to initiate a capture. The timer 2
contents will be latched into the appropriate capture register in the cycle following the write
instruction. In this mode no interrupt request will be generated.
MCS02662
Latch
Port
Q
Q
CLK
D
Read Pin
CC
V
D
CLK
Q
Shadow
Latch
Read Latch
Port Circuit
Internal
Bus
Latch
Write to
Compare Reg.
Compare Register
Circuit
Comparator
Timer Register
Timer Circuit
Compare
Match
Pin
Port
16 Bit
16 Bit
相關(guān)PDF資料
PDF描述
SAB-C505C-2RM Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Circular Contact Gender:Pin; Insert Arrangement:18-5
SAF-C505C-2RM Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
SAB-C505A-4EM 8-Bit CMOS Microcontroller
SAF-C505A-4EM 8-Bit CMOS Microcontroller
SAF-C505-2RM 8-Bit CMOS Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAB-C505CA-4EM CA 功能描述:8位微控制器 -MCU 8 BIT OTP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
SAB-C505CA-4EM CATR 制造商:Infineon Technologies AG 功能描述:
SABC505CA4EMCA 制造商:Infineon Technologies AG 功能描述: 制造商:Rochester Electronics LLC 功能描述:
SAB-C505CA-4EMCA 功能描述:8位微控制器 -MCU 8 BIT OTP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
SABC505CA4EMCAXT 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit C500 8051 CISC 32KB EPROM 5V 44-Pin MQFP Ammo