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參數(shù)資料
| 型號(hào)： | SAFC505 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件頁(yè)數(shù)： | 41/85頁(yè) |
| 文件大?。?/td> | 487K |
| 代理商： | SAFC505 |
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C505L
Data Sheet
39
06.99
Real-Time Clock
The real-time clock unit of the C505L contains a dedicated oscillator and a 47-bit timer which is used
to count time elapsed with respect to an initial time. The C505L real-time clock does not provide for
any error correction. Any such corrections can be done by software only.
Functionality
The real-time clock can be initialized to a 40-bit initial value, which are loaded into the upper 40-bits
of the timer. The lower 7 bits of the counter are never accessible by the user and merely act as
prescalers that are initialized to 0000000
B
after a start operation on the real-time clock. One
increment of the clock register is made for every cycle of the input clock (32.768 kHz). The
functionality of the real-time clock is shown in
Figure 18
.
Figure 18
Real-Time Clock
The register memory for the real-time clock is implemented in the on-chip external data memory
area. Accesses to these registers are similar to on-chip XRAM accesses (MOVX instructions) and
therefore must be preceded by an enable operation on the on-chip XRAM. These registers include
the RTCON, RTCR0 to RTCR4 (RTCR), CLREG0 to CLREG4 (CLREG) and RTINT0 to RTINT4
(RTINT) registers.
Control
ERTC
RTINT, 40-Bit Register
40-Bit Comparator
CLREG, 40-Bit Timer
RTCR, 40-Bit Register
MCS03865
LSB
MSB
Bit 0
Bit 6
OSC.
IRTC
32.768 KHz
Input
These bits are not readable.
Wake - up
Request
RTCS
7-Bit Timer
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAF-C505C-LM | 8-Bit CMOS Microcontroller |
| SAF-C505-LM | 8-Bit CMOS Microcontroller |
| SAB-C505-LM | 8-Bit CMOS Microcontroller |
| SAB-C505C-LM | 8-Bit CMOS Microcontroller |
| SAF-C505 | 8-Bit CMOS Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAF-C505 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C505-2RM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C505A-4EM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SAFC505A4EM-CA | 制造商:Infineon Technologies AG 功能描述:MCU 8-bit C500 8051 CISC 32KB EPROM 5V 44-Pin MQFP Ammo |
| SAF-C505C-2RM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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