參數(shù)資料
型號： SAX-XC878-13FFI3V3
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
封裝： PLASTIC, TQFP-64
文件頁數(shù)： 67/141頁
文件大?。?/td> 2385K
代理商： SAX-XC878-13FFI3V3
XC878CLM
Functional Description
Data Sheet
24
V1.1, 2009-08
3.2.2
Special Function Register
The Special Function Registers (SFRs) occupy direct internal data memory space in the
range 80H to FFH. All registers, except the program counter, reside in the SFR area. The
SFRs include pointers and registers that provide an interface between the CPU and the
on-chip peripherals. As the 128-SFR range is less than the total number of registers
required, address extension mechanisms are required to increase the number of
addressable SFRs. The address extension mechanisms include:
Mapping
Paging
3.2.2.1
Address Extension by Mapping
Address extension is performed at the system level by mapping. The SFR area is
extended into two portions: the standard (non-mapped) SFR area and the mapped SFR
area. Each portion supports the same address range 80H to FFH, bringing the number of
addressable SFRs to 256. The extended address range is not directly controlled by the
CPU instruction itself, but is derived from bit RMAP in the system control register
SYSCON0 at address 8FH. To access SFRs in the mapped area, bit RMAP in SFR
SYSCON0 must be set. Alternatively, the SFRs in the standard area can be accessed
by clearing bit RMAP. The SFR area can be selected as shown in Figure 8.
As long as bit RMAP is set, the mapped SFR area can be accessed. This bit is not
cleared automatically by hardware. Thus, before standard/mapped registers are
accessed, bit RMAP must be cleared/set, respectively, by software.
相關(guān)PDF資料
PDF描述
SAX-XC878-13FFI5V 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
SAX-XC878CM-13FFI5V 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAX-XC878-16FFA 3V3 AC 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 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
SAX-XC878-16FFA 5V AA 功能描述:IC MCU 8BIT FLASH 64-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:XC8xx 標(biāo)準(zhǔn)包裝:1,900 系列:XC8xx 核心處理器:XC800 芯體尺寸:8-位 速度:27MHz 連通性:CAN，SPI，SSI，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:52KB（52K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:3.25K x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:64-LQFP 包裝:帶卷 (TR)
SAX-XC878-16FFA 5V AC 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 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
SAX-XC878-16FFA5V 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller
SAX-XC878-16FFA5VAA 功能描述:8位微控制器 -MCU 8 BIT FLASH 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
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