AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 105

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Table 19. Signal Description List (Continued)
Signal Names
6071A–ATARM–28-Oct-04
Signal Name
PGMNCMD
PGMRDY
PGMNOE
PGMNVALID
PGMM[3:0]
PGMD[7:0]
Function
Valid command available
0: Device is busy
1: Device is ready for a new command
Output Enable (active high)
0: DATA[7:0] is in input mode
1: DATA[7:0] is in output mode
Specifies DATA type (See Table 20)
Bi-directional data bus
Depending on the MODE settings, DATA is latched in different internal registers.
Table 20. Mode Coding
When MODE is equal to CMDE, then a new command (strobed on DATA[7:0] signals) is
stored in the command register.
Table 21. Command Bit Coding
MODE[3:0]
0000
0001
0010
0011
0100
0101
Default
DATA[7:0]
0x0011
0x0012
0x0022
0x0032
0x0042
0x0013
0x0014
0x0024
0x0015
0x0034
0x0044
0x0025
Symbol
CMDE
ADDR0
ADDR1
ADDR2
ADDR2
DATA
IDLE
Symbol
READ
WP
WPL
EWP
EWPL
EA
SLB
CLB
GLB
SFB
CFB
GFB
Input/Output
Output
Output
Type
Input
Input
Input
AT91SAM7S32 Preliminary
Command Executed
Read Flash
Write Page Flash
Write Page and Lock Flash
Erase Page and Write Page
Erase Page and Write Page then Lock
Erase All
Set Lock Bit
Clear Lock Bit
Get Lock Bit
Set General Purpose NVM bit
Clear General Purpose NVM bit
Get General Purpose NVM bit
Data
Address Register LSBs
Address Register MSBs
Data Register
No register
Command Register
Active
Level
High
Low
Low
Low
Comments
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
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