參數(shù)資料
型號(hào): rosa51
廠商: SIEMENS AG
英文描述: MultiMediaCard Adapter(多媒體卡適配器)
中文描述: 多媒體卡(多媒體卡適配器)
文件頁數(shù): 53/54頁
文件大小: 510K
代理商: ROSA51
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Siemens AG Semiconductors
Version 5.2
Confidential
20/10/1998
53
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Application Interface (14 pins)
DATA7...DATA0
CS_N
CD
STB_N
ACK_N
RW
IRQ_N
3-state I/O
I
I
I
OD
I
OD
Multiplexed address and data bus pins
Chip select signal (low active)
System commands (‘1’) or data (‘0’) signal
Application transfer request (low active)
transfer acknowledge (low active)
Read (‘1’) or write (‘0’) indicator
MultiMediaCard interrupt request requests an interrupt
from the host (low active)
I
I
I
O
I
O
MultiMediaCard Bus Interface (10 pins)
VPP
CMD
VDD
CLK
DAT
ROD
CMD_RW
DAT_RW
O
3-state I/O
O
O
3-state I/O
O
O
O
O
Programming supply voltage enable
MultiMediaCard command line
supply high enable
MultiMediaCard bus clock
MultiMediaCard data line
Switch for open-drain resistor
CMD line direction indicator
DAT line direction indicator
O
O
O
O
O
RAM Interface (36 pins)
RAM_ADDR[15:0]
RAM_WR_EN
RAM_RD_DATA[
7:0]
RAM_WR_DATA[
7:0]
O
O
I
O
O
I
RAM address bus, width depends on implementation
RAM write enable
RAM read data bus
3-state O
RAM write data bus
Power Signals (x pins)
GND
VCC
ground
power
Ground (n pins)
Power supply (3.3V) (n pins)
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