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參數(shù)資料
| 型號： | SAF-C161RI-LM |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, 20 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | METRIC, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 5/60頁 |
| 文件大?。?/td> | 926K |
| 代理商： | SAF-C161RI-LM |
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Semiconductor Group
13
1998-05-01
C161RI
External Bus Controller
All of the external memory accesses are performed by a particular on-chip External Bus Controller
(EBC). It can be programmed either to Single Chip Mode when no external memory is required, or
to one of four different external memory access modes, which are as follows:
– 16-/18-/20-/23-bit Addresses, 16-bit Data, Demultiplexed
– 16-/18-/20-/23-bit Addresses, 16-bit Data, Multiplexed
– 16-/18-/20-/23-bit Addresses, 8-bit Data, Multiplexed
– 16-/18-/20-/23-bit Addresses, 8-bit Data, Demultiplexed
In the demultiplexed bus modes, addresses are output on PORT1 and data is input/output on
PORT0 or P0L, respectively. In the multiplexed bus modes both addresses and data use PORT0 for
input/output.
Important timing characteristics of the external bus interface (Memory Cycle Time, Memory
Tri-State Time, Length of ALE and Read Write Delay) have been made programmable to allow the
user the adaption of a wide range of different types of memories and external peripherals.
In addition, up to 4 independent address windows may be defined (via register pairs ADDRSELx /
BUSCONx) which allow to access different resources with different bus characteristics. These
address windows are arranged hierarchically where BUSCON4 overrides BUSCON3 and
BUSCON2 overrides BUSCON1. All accesses to locations not covered by these 4 address windows
are controlled by BUSCON0.
Up to 5 external CS signals (4 windows plus default) can be generated in order to save external glue
logic. Access to very slow memories is supported via a particular ‘Ready’ function.
For applications which require less than 8 MBytes of external memory space, this address space
can be restricted to 1 MByte, 256 KByte or to 64 KByte. In this case Port 4 outputs four, two or no
address lines at all. It outputs all 7 address lines, if an address space of 8 MBytes is used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAB-C161RI-LF | 16-BIT, 20 MHz, MICROCONTROLLER, PQFP100 |
| SAF-C161S-L25M | 16-BIT, 25 MHz, MICROCONTROLLER, PQFP80 |
| SAB-C161S-LM3V | 16-BIT, 20 MHz, MICROCONTROLLER, PQFP80 |
| SAB-C161S-L25M | 16-BIT, 25 MHz, MICROCONTROLLER, PQFP80 |
| SAF-C501G-LN | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAFC161S | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller |
| SAF-C161S | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller |
| SAF-C161S-L25M | 制造商:Infineon Technologies AG 功能描述:IC 16BIT MCU ROM/ROMLESS SMD 161 |
| SAF-C161S-L25M AA | 功能描述:16位微控制器 - MCU 16-Bit Single-Chip 5V 25MHz ROM less RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| SAF-C161S-L25M AATR | 制造商:Infineon Technologies AG 功能描述: |
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