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參數(shù)資料
| 型號： | SAF-XC161CJ-16F20F |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 16-Bit Single-Chip Microcontroller |
| 中文描述： | 16位單片機 |
| 文件頁數(shù)： | 23/79頁 |
| 文件大?。?/td> | 2440K |
| 代理商： | SAF-XC161CJ-16F20F |
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XC161
Derivatives
Functional Description
Data Sheet
19
V2.2, 2003-06
3.2
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
1)
, which
are as follows:
– 16
…
24-bit Addresses, 16-bit Data, Demultiplexed
– 16
…
24-bit Addresses, 16-bit Data, Multiplexed
– 16
…
24-bit Addresses, 8-bit Data, Multiplexed
– 16
…
24-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. The high order address (segment) lines use
Port 4. The number of active segment address lines is selectable, restricting the external
address space to 8 Mbytes
…
64 Kbytes. This is required when interface lines are
assigned to Port 4.
Up to 5 external CS signals (4 windows plus default) can be generated in order to save
external glue logic. External modules can directly be connected to the common address/
data bus and their individual select lines.
Access to very slow memories or modules with varying access times is supported via a
particular ‘Ready’ function. The active level of the control input signal is selectable.
A HOLD/HLDA protocol is available for bus arbitration and allows the sharing of external
resources with other bus masters. The bus arbitration is enabled by software. After
enabling, pins P6.7 … P6.5 (BREQ, HLDA, HOLD) are automatically controlled by the
EBC. In Master Mode (default after reset) the HLDA pin is an output. In Slave Mode pin
HLDA is switched to input. This allows the direct connection of the slave controller to
another master controller without glue logic.
Important timing characteristics of the external bus interface have been made
programmable (via registers TCONCSx/FCONCSx) 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 registers
ADDRSELx) which control the access to different resources with different bus
characteristics. These address windows are arranged hierarchically where window 4
overrides window 3, and window 2 overrides window 1. All accesses to locations not
covered by these 4 address windows are controlled by TCONCS0/FCONCS0. The
currently active window can generate a chip select signal.
The external bus timing is related to the rising edge of the reference clock output
CLKOUT. The external bus protocol is compatible with that of the standard C166 Family.
1)
Bus modes are switched dynamically if several address windows with different mode settings are used.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAF-XC161CJ-16F20F BB | 功能描述:IC MCU 16BIT FLASH TQFP-144-19 RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:XC16x 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C，智能卡，UART/USART，USB 外圍設(shè)備:LED，POR，WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件 |
| SAFXC161CJ16F20FAC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SAFXC161CJ16F20FBB | 功能描述:16位微控制器 - MCU XC166 CISC 128KB FLASH 20MHZ 5V 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-XC161CJ-16F20FBB | 制造商:Rochester Electronics LLC 功能描述: 制造商:Infineon Technologies AG 功能描述: |
| SAFXC161CJ16F20FBB TR | 制造商:Infineon Technologies AG 功能描述: |
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