CD016G0PFA Advanced Micro Devices, Inc., CD016G0PFA Datasheet - Page 25
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CD016G0PFA
Manufacturer Part Number
CD016G0PFA
Description
16 Megabit(512 K X 32-Bit),CMOS 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/write Flash Memory
Manufacturer
Advanced Micro Devices, Inc.
Datasheet
1.CD016G0PFA.pdf
(90 pages)
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March 22, 2004 S29CD016_00A0
Configuration Register
CR15 = Read Mode (RM)
0 = Synchronous Burst Reads Enabled
1 = Asynchronous Reads Enabled (Default)
CR14 = Reserved for Future Enhancements
These bits are reserved for future use. Set these bits to “0”.
CR15
CR7
RM
BS
Configuration Register
The device contains a Configuration Register for configuring read accesses. The
Configuration Register is accessed by the Configuration Register Read and the
Configuration Register Write commands. The Configuration Register does not oc-
cupy any addressable memory location, but rather, is accessed by the
Configuration Register commands. The Configuration Register is readable any
time, however, writing the Configuration Register is restricted to times when the
Embedded Algorithm™ is not active. If the user attempts to write the Configura-
tion Register while the Embedded Algorithm™ is active, the write operation is
ignored and the contents of the Configuration Register remain unchanged.
The Configuration Register is a 16 bit data field which is accessed by DQ15–DQ0.
During a read operation, DQ31–DQ16 returns all zeroes. Table 9 shows the Con-
figuration Register. Also, Configuration Register reads operate the same as
Autoselect command reads. When the command is issued, the bank address is
latched along with the command. Reads operations to the bank that was specified
during the Configuration Register read command return Configuration Register
contents. Read operations to the other bank return flash memory data. Either
bank address is permitted when writing the Configuration Register read
command.
Reserved
CR14
CR6
CC
A d v a n c e
Reserved
IAD3
CR13
Table 9. Configuration Register Definitions
CR5
I n f o r m a t i o n
Reserved
IAD2
CR12
CR4
S29CD016G
Reserved
IAD1
CR11
CR3
IAD0
CR10
CR2
BL2
DOC
CR1
BL1
CR9
CR8
CR0
BL0
WC
25
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