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AT697F Datasheet(PDF) 142 Page - ATMEL Corporation

Part # AT697F
Description  Rad-Hard 32 bit SPARC V8 Processor
PDF  155 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT697F Datasheet(HTML) 142 Page - ATMEL Corporation

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7703C–AERO–6/09
AT697F ADVANCE INFORMATION
Figure 65. Burst of RAM Fetches and RAM Write Sequence - n Waitstates
Fetch Inst 0
Load Data
Fetch Inst 1
Write Data
Inst Addr 0
Data Addr 1
Inst Addr 1
Data Addr 2
Inst 0
Data
Inst 1
WData
CB Inst 0
CB
CB Inst 1
WCB
t14
t11
t13
t12
t13
t12
t13
t12
t14
t11
t13
t12
t13
t12
t13
t12
t17
t17
t17
t17
t17
t17
t17
t17
t10
t10
t10
t10
n W S
n W S
n WS
n WS
n WS
n WS
n WS
t3
n WS
t3
SDCLK
A[27:0]
RAMS0*
RAMOE0*
RWE[3:0]*
D[31:0]
CB[7:0]
(PRELIMINARY)
Figure 66. SDRAM Read (or Fetch) with Precharge - Burst length = 1; CL = 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
ba
ba
ba
ba
row
co
row
d1
t12
t12
t22
t22
t22
t22
t22
t21
t21
t22
t22
t22
t22
t22
t22
t22
t22
t22
t22
t22
t22
t22
t22
t10
t10
t10
t10
t10
t10
t10
trp
trp
Tras
tcas
tcas
Trcd
Tras
Trcd
Activate
Read
precharge
activate
SDCLK
Memory - A[16:15]
A[14:2]
SDCS*
SDRAS*
SDCAS*
SDWE*
SDDQM[3:0]*
D[31:0]
(PRELIMINARY)



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