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Cypress CY14B108N Manual De Usuario

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PRELIMINARY
CY14B108L, CY14B108N
Document #: 001-45523 Rev. *B
Page 6 of 24
Table 2.  Mode Selection 
CE
WE
OE, BHE, BLE
A
15
 - A
0
Mode
IO
Power
H
X
X
X
Not Selected
Output High Z
Standby
L
H
L
X
Read SRAM
Output Data 
Active
L
L
X
X
Write SRAM
Input Data 
Active
L
H
L
0x4E38
0xB1C7
0x83E0
0x7C1F
0x703F
0x8B45
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
AutoStore 
Disable
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Active
L
H
L
0x4E38
0xB1C7
0x83E0
0x7C1F
0x703F
0x4B46
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
AutoStore Enable
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Active
L
H
L
0x4E38
0xB1C7
0x83E0
0x7C1F
0x703F
0x8FC0
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile 
STORE
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Active I
CC2
L
H
L
0x4E38
0xB1C7
0x83E0
0x7C1F
0x703F
0x4C63
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile 
RECALL
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Active
Notes
5. While there are 20 address lines on the CY14B108L (19 address lines on the CY14B108N), only the 13 address lines (A
14
 - A
2
) are used to control software modes. 
Rest of the address lines are don’t care.
6. The six consecutive address locations must be in the order listed. WE must be HIGH during all six cycles to enable a nonvolatile cycle.