參數(shù)資料
型號(hào): CSR2930800BA
廠商: Electronic Theatre Controls, Inc.
英文描述: FLASH MEMORY CMOS 8M (1M x 8/512K x 16) BIT
中文描述: 閃存的CMOS 800萬(100萬x 8/512K × 16)位
文件頁數(shù): 10/50頁
文件大?。?/td> 475K
代理商: CSR2930800BA
CSR2930800BA
-90
10
CSR2930800BA Standard Command Definitions Table
Notes:
Address bits A
11
to A
18
= X = “H” or “L” for all address commands except or Program Address (PA) and
Sector Address (SA)
Bus operations are defined in “CSR2930800BA User Bus Operations Tables (BYTE
=
V
IH
and
BYTE
=
V
IL
)” .
RA = Address of the memory location to be read
PA = Address of the memory location to be programmed
Addresses are latched on the falling edge of the WE pulse.
SA = Address of the sector to be erased. The combination of A
18
, A
17
, A
16
, A
15
, A
14
, A
13
, and A
12
will
uniquely select any sector.
RD = Data read from location RA during read operation.
PD = Data to be programmed at location PA. Data is latched on the falling edge of WE.
The system should generate the following address patterns:
Word Mode: 555h or 2AAh to addresses A
0
to A
10
Byte Mode: AAAh or 555h to addresses A
–1
and A
0
to A
10
Both Read/Reset commands are functionally equivalent, resetting the device to the read mode.
Command combinations not described in “CSR2930800BA Standard Command Definitions
Table” and “CSR2930800BA Extended Command Definitions Table” are illegal.
Command
Sequence
Bus
Write
Cycles
Req’d
First Bus
Write Cycle
Second Bus
Write Cycle
Third Bus
Write Cycle
Fourth Bus
Read/Write
Cycle
Fifth Bus
Write Cycle
Sixth Bus
Write Cycle
Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data
Read/Reset
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
1
XXXh
F0h
Read/Reset
3
555h
AAAh
555h
AAAh
555h
AAAh
555h
AAAh
555h
AAAh
Erase can be suspended during sector erase with Addr. (“H” or “L”). Data (B0h)
Erase can be resumed after suspend with Addr. (“H” or “L”). Data (30h)
AAh
2AAh
555h
2AAh
555h
2AAh
555h
2AAh
555h
2AAh
555h
55h
555h
AAAh
555h
AAAh
555h
AAAh
555h
AAAh
555h
AAAh
F0h
RA
RD
Autoselect
3
AAh
55h
90h
Program
4
AAh
55h
A0h
PA
PD
Chip Erase
6
AAh
55h
80h
555h
AAAh
555h
AAAh
AAh
2AAh
555h
2AAh
555h
55h
555h
AAAh
10h
Sector Erase
6
AAh
55h
80h
AAh
55h
SA
30h
Sector Erase Suspend
Sector Erase Resume
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