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參數(shù)資料
| 型號： | AT43101 |
| 廠商： | ATMEL CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | PCMCIA Card Memory Interface Circuit with 256 Bytes of Internal Attribute Memory EEPROM |
| 中文描述： | PCMCIA BUS CONTROLLER, PQFP64 |
| 封裝： | 1.20 MM HEIGHT, TQFP-64 |
| 文件頁數(shù)： | 6/14頁 |
| 文件大?。?/td> | 103K |
| 代理商： | AT43101 |
ADDRESS
BUFFER
A[24:9]
IA[24:9]
SGL/DBL* LOGIC
ONE OF
EIGHT
DECODER
EN
EN
BYTE WRITE
CONTROL LOGIC
BYTE READ
CONTROL LOGIC
ICE7*
ICE6*
ICE5*
ICE4*
ICE3*
ICE2*
ICE1*
ICE0*
IWEH*
IWEL*
IOEH*
IOEL*
SGL/DBL*
DEC[2:0]
SEL[1:0]
REG*
EN
DEC
3
CE1*
CE2*
IWP*
WP
WE*
OE*
A0
Reset
Block Diagram for Mode B Operation
The AT43101 supports both Common and Attribute
Memory read and write cycles of word and byte width.
Common memory, the external memory devices on the PC
card, is selected when REG* is high and can be accessed
in either byte or word mode. Attribute memory, the internal
256x8 E2PROM, is selected when REG* is low and can
only be accessed as the even byte of it’s 512 byte address
space. Byte/word addressing is controlled by CE1*, CE2*
and A0. OE* functions as an active low output enable.
WE* functions as an active low write enable.
Memory access functionality is defined by the following
table. When Attribute Memory is selected by the assertion
of REG*, only the lower data bus, D[7:0] is valid and only
even numbered addresses may be accessed. Accord-
ingly, an entry of “H or L” in the REG* of the function table
means the access is supported for both Common Memory
and Attribute Memory. An entry of “H only” means the ac-
cess is supported for Common Memory accesses but not
for Attribute Memory accesses.
During word accesses of Common Memory, D[15:0] and
ID[15:0] are active. During byte accesses (other than Odd
Byte Only accesses), the PCMCIA transfers take place on
D[7:0] and the AT43101 performs the required byte lane
swapping based on A0 to and from D[15:8] or D[7:0]
6
AT43101
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT43301-AU | Low-cost USB Hub Controller |
| AT43301-SC | Low-cost USB Hub Controller |
| AT43301-SU | Low-cost USB Hub Controller |
| AT43301-AC | Low-cost USB Hub Controller |
| AT43301 | USB HUB CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT431A-KDR | 制造商: 功能描述:ADJUSTABLE PRECISION SHUNT REGULATORS 制造商:undefined 功能描述:ADJUSTABLE PRECISION SHUNT REGULATORS |
| AT431C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Voltage Adjustable Precision Shunt Regulator |
| AT431-GRE | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:1.24V low-Voltage Adjustable Precision Shunt Regulator |
| AT431LA-KDR | 制造商: 功能描述:Adjustable Precision Shunt Regulator 制造商:undefined 功能描述:Adjustable Precision Shunt Regulator |
| AT431UN | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:1.24V low-Voltage Adjustable Precision Shunt Regulator |
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