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參數(shù)資料
| 型號： | TSC80251G2D-16CB |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8/16-bit Microcontroller with Serial Communication Interfaces |
| 中文描述： | 16位產(chǎn)品微控制器的串行通信接口 |
| 文件頁數(shù)： | 10/63頁 |
| 文件大小： | 878K |
| 代理商： | TSC80251G2D-16CB |
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10
Rev. A - May 7, 1999
TSC80251G2D
6.2 Data Memory
The TSC80251G2D derivatives implement 1 Kbyte of on-chip data RAM. Figure 6 shows the split of the internal
and external data memory spaces. This memory is mapped in the data space just over the 32 bytes of registers
area (see TSC80251 Programmers’ Guide). Hence, the part of the on-chip RAM located from 20h to FFh is bit
addressable. This on-chip RAM is not accessible through the program/code memory space.
For faster computation with the on-chip ROM/EPROM code of the TSC83251G2D/TSC87251G2D, its upper 16
Kbytes are also mapped in the upper part of the region 00: if the On-Chip Code Memory Map configuration bit
is cleared (EMAP# bit in UCONFIG1 byte, see Figure 8). However, if EA# is tied to a low level, the TSC80251G2D
derivative is running as a ROMless product and the code is actually fetched in the corresponding external memory
(i.e. the upper 16 Kbytes of the lower 32 Kbytes of the segment FF:). If EMAP# bit is set, the on-chip ROM is
not accessible through the region 00:.
All the accesses to the portion of the data space with no on-chip memory mapped onto are redirected to the external
memory.
Figure 6. Data Memory Mapping
6.3 Special Function Registers
The Special Function Registers (SFRs) of the TSC80251G2D derivatives fall into the categories detailed in Table 3
to Table 11.
SFRs are placed in a reserved on-chip memory region S: which is not represented in the data memory mapping
(Figure 6). The relative addresses within S: of these SFRs are provided together with their reset values in Table 12.
They are upward compatible with the SFRs of the standard 80C51 and the Intel’s 80C251Sx family. In this table,
the C251 core registers are identified by Note 1 and are described in the TSC80251 Programmer’s Guide. The
other SFRs are described in the TSC80251G1D Design Guide. All the SFRs are bit-addressable using the C251
instruction set.
On-chip ROM/EPROM
Code Memory
Data Segments
Data External
Memory Space
16 Kbytes
EA#= 0
EA#= 1
32 Kbytes
32 Kbytes
Reserved
64 Kbytes
≈
47 Kbytes
FF:FFFFh
FF:8000h
FF:7FFFh
FF:0000h
FE:FFFFh
FE:0000h
FD:FFFFh
01:FFFFh
01:0000h
00:FFFFh
00:C000h
00:BFFFh
02:0000h
00:0420h
32 bytes reg.
RAM Data
1 Kbyte
16 Kbytes
EMAP#= 1
EMAP#= 0
16 Kbytes
64 Kbytes
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| TSC80251G2D-16CBR | 功能描述:IC MCU 8BIT 16MHZ HI SPD 44-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:8x251 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，LIN，SPI，UART/USART，USI 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB（4K x 16） 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:帶卷 (TR) |
| TSC80251G2D-24CB | 功能描述:IC C251 MCU ROMLESS 5V 44PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:8x251 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，LIN，SPI，UART/USART，USI 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB（4K x 16） 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:帶卷 (TR) |
| TSC80251G2D-24CBR | 制造商:Atmel Corporation 功能描述:MCU 8-bit/16-bit 8x251 C251 CISC ROMLess 3.3V/5V 44-Pin PLCC |
| TSC80251G2D-24CE | 功能描述:IC C251 MCU ROMLESS 5V 44VQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:8x251 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，LIN，SPI，UART/USART，USI 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB（4K x 16） 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:帶卷 (TR) |
| TSC80251G2D-24CED | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:8/16-bit Microcontroller with Serial Communication Interfaces |
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