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参数资料
| 型号： | SAF-C505CA-4R |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | METRIC, PLASTIC, QFP-44 |
| 文件页数： | 15/88页 |
| 文件大小： | 1224K |
| 代理商： | SAF-C505CA-4R |
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C505/C505C/C505A/C505CA
Data Sheet
18
12.00
Special Function Registers
The registers, except the program counter and the four general purpose register banks, reside in
the special function register area. The special function register area consists of two portions : the
standard special function register area and the mapped special function register area. Five special
function register of the C505 (PCON1,P1ANA, VR0, VR1, VR2) are located in the mapped special
function register area. For accessing the mapped special function register area, bit RMAP in special
function register SYSCON must be set. All other special function registers are located in the
standard special function register area which is accessed when RMAP is cleared (“0“).
The registers and data locations of the CAN controller (CAN-SFRs) are located in the external data
memory area at addresses F700H to F7FFH..
Special Function Register SYSCON (Address B1H)
Reset Value : XX100X01B
(C505CA only)
Reset Value : XX100001B
As long as bit RMAP is set, mapped special function register area can be accessed. This bit is not
cleared by hardware automatically. Thus, when non-mapped/mapped registers are to be accessed,
the bit RMAP must be cleared/set respectively by software.
All SFRs with addresses where address bits 0-2 are 0 (e.g. 80H, 88H, 90H, 98H, ..., F8H, FFH) are
bitaddressable.
The 52 special function registers (SFRs) in the standard and mapped SFR area include pointers
and registers that provide an interface between the CPU and the other on-chip peripherals. The
refer to the functional blocks of the C505. The CAN-SFRs (applicable for the C505C and C505CA
only) are also included in Table 3. Table 4 illustrates the contents of the SFRs in numeric order of
their addresses. Table 5 list the CAN-SFRs in numeric order of their addresses.
Bit
Function
RMAP
Special function register map bit
RMAP = 0 : The access to the non-mapped (standard) special function register
area is enabled.
RMAP = 1 : The access to the mapped special function register area is enabled.
CSWO
CAN Controller switch-off bit
CSWO = 0 : CAN Controller is enabled (default after reset).
CSWO = 1 : CAN Controller is switched off.
7654
3210
EALE
RMAP CMOD
B1H
SYSCON
Bit No.
MSB
LSB
CSWO XMAP1
––
XMAP0
The functions of the shaded bits are not described here.
1)
1) This bit is only available in the C505CA.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SAF-C505CA-4RM CA | 功能描述:8位微控制器 -MCU 8-Bit Single-Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| SAF-C505CA-LM | 制造商:Infineon Technologies AG 功能描述:IC 8BIT MCU ROM/ROMLESS SMD |
| SAF-C505CA-LM 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 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| SAFC505CALMCA | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| SAF-C505CA-LMCA | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
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