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參數資料
| 型號： | SMFV008 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 8M x 8 Bit SmartMedia Card(8M x 8 位 智能媒體卡) |
| 中文描述： | 8米× 8位SmartMedia卡（8米× 8位智能媒體卡） |
| 文件頁數： | 22/24頁 |
| 文件大小： | 294K |
| 代理商： | SMFV008 |
SMFV008
SmartMedia
TM
22
Figure 9. Read ID Operation
CE
CLE
I/O
0
~
7
ALE
RE
WE
90H
00
ECH
E6H
Address. 1 cycle
Maker code
Device code
t
CR
t
AR1
t
READID
Figure 10. RESET Operation
RESET
The device contains a Status Register which may be read to find out whether program or erase operation is completed, and whether
the program or erase operation is completed successfully. After writing 70H command to the command register, a read cycle output s
the content of the Status Register to the I/O pins on the falling edge of CE or RE, whichever occurs last. This two line control allows
the system to poll the progress of each device in multiple memory connections even when R/ B pins are common-wired. RE or CE
dose not need to be toggled for updated status. Refer to table 2 for specific Status Register definitions. The command register
remains in Status Read mode until further commands are issued to it. Therefore, if the status register is read during a random r ead
cycle, a read command(00H or 50H) should be given before sequential page read cycle.
After Power-up
After Reset
Operation Mode
Read 1
Waiting for next command
FFH
I/O
0
~
7
R/B
Table3. Device Status
t
RST
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