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您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25635 > S83C154DCXXX-16R (ATMEL CORP) 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44 PDF資料下載

型號(hào)：	S83C154DCXXX-16R
廠商：	ATMEL CORP
元件分類：	微控制器/微處理器
英文描述：	8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44
封裝：	PLASTIC, LCC-44
文件頁(yè)數(shù)：	100/1021頁(yè)
文件大小：	15196K
代理商：	S83C154DCXXX-16R

32072H–AVR32–10/2012

AT32UC3A3

CompactFlash Support

The External Bus Interface integrates circuitry that interfaces to CompactFlash devices.

The CompactFlash logic is driven by the SMC on the NCS[4] and/or NCS[5] address space.

Writing to the HMATRIX.SFR6.CS4A and/or HMATRIX.SFR6.CS5A bits the appropriate value

enables this logic. Access to an external CompactFlash device is then made by accessing the

address space reserved to NCS[4] and/or NCS[5].

Attribute Memory, Common Memory, I/O modes are supported but the signals _IOWR, _IOIS16

(I/O mode) are not handled.

I/O Mode, Common Memory Mode, Attribute Memory Mode

Within the NCS[4] and/or NCS[5] address space, the current transfer address is used to distin-

guish I/O mode, common memory mode andattribute memory mode.

The different modes are accessed through a specific memory mapping as illustrated on Figure

14-2 on page 169. ADDR[23:21] bits of the transfer address are used to select the desired mode

Figure 14-2. CompactFlash Memory Mapping

The ADDR[22] I/O line is used to drive the REG signal of the CompactFlash Device.

CFCE1 and CFCE2 signals

To cover all types of access, the SMC must be alternatively set to drive 8-bit data bus or 16-bit

data bus. The odd byte access on the DATA[7:0] bus is only possible when the SMC is config-

Table 14-4.

CompactFlash Mode Selection

ADDR[23:21]

Mode Base Address

Attribute Memory

I/O Mode (Write operations)

Common Memory

I/O Mode (Read operations)

I/OMode Space

(Read operations)

Common Memory Mode Space

Attribute Memory Mode Space

Offset 0x0080 0000

Offset 0x0040 0000

Offset 0x0000 0000

CFAddress Space

I/OMode Space

(Write operations)

Offset 0x0020 0000

相關(guān)PDF資料	PDF描述
SD80C32EXXX-30SC	8-BIT, 30 MHz, MICROCONTROLLER, CDIP40
S80C52XXX-12SHXXX:R	8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44
S80C154-20	8-BIT, 20 MHz, MICROCONTROLLER, PQCC44
S83C154DCXXX-12	8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44
S83C154DXXX-12	8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
S83C154D-L16	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S83C154DT-12	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S83C154DT-16	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S83C154DT-20	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S83C154DT-25	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller

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