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SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
20.2.2
Signal Names
Depending on the MODE settings, DATA is latched in different internal registers.
When MODE is equal to CMDE, then a new command (strobed on DATA[15:0] or DATA[7:0] signals) is stored in
the command register.
Note:
DATA[7:0] pertains to the SAM7S32/16.
Notes:
1. DATA[7:0] pertains to the SAM7S32/16.
2. Applies to SAM7S512.
Table 20-2.
Mode Coding
MODE[3:0]
Symbol
Data
0000
CMDE
Command Register
0001
ADDR0
Address Register LSBs
0010
ADDR1
0011
ADDR2
0100
ADDR3
Address Register MSBs
0101
DATA
Data Register
Default
IDLE
No register
Table 20-3.
Command Bit Coding
DATA[15:0]
DATA[7:0](1)
Symbol
Command Executed
0x0011
READ
Read Flash
0x0012
WP
Write Page Flash
0x0022
WPL
Write Page and Lock Flash
0x0032
EWP
Erase Page and Write Page
0x0042
EWPL
Erase Page and Write Page then Lock
0x0013
EA
Erase All
0x0014
SLB
Set Lock Bit
0x0024
CLB
Clear Lock Bit
0x0015
GLB
Get Lock Bit
0x0034
SGPB
Set General Purpose NVM bit
0x0044
CGPB
Clear General Purpose NVM bit
0x0025
GGPB
Get General Purpose NVM bit
0x0054
SSE
Set Security Bit
0x0035
GSE
Get Security Bit
0x001F
WRAM
Write Memory
0x0016
SEFC
Select EFC Controller
(2)
0x001E
GVE
Get Version