at94s40al-25bqi ATMEL Corporation, at94s40al-25bqi Datasheet - Page 8

• Manufacturer Part Number: at94s40al-25bqi
• Description: Secure 5k - 40k Gates Of At40k Fpga With 8-bit Microcontroller, Up To 36 Kbytes Of Sram And On-chip Program Storage Eeprom
• Manufacturer: ATMEL Corporation

8
Programming Summary:
Read from Whole Device
AT94S Secure Family
Low-power (Standby)
Send Device Address
Send Device Address
BYTE_COUNT ≤ 0
Send Start Condition
Send Start condition
EEPROM Address
EEPROM Address
Sent Stop Condition
EEPROM Address
BYTE_COUNT+1
SER_EN ≤ High
SER_EN ≤ Low
Read Data Byte
BYTE_COUNT ≤
Middle Byte
Send MSB of
Send LSB of
Send ACK
START
($A6)
($A7)
END
(2)
(1)
(1)
Yes
Yes
Yes
Yes
Yes
Yes
No
BYTE_COUNT=
TT_BYTE?
ACK?
ACK?
ACK?
ACK?
ACK?
No
No
No
No
No
Notes:
EEPROM Address is Defined as:
AT17LV010
TT_BYTE
AT17LV010
1. The 1-Mbit part requires three EEPROM address
2. Data byte received/sent LSB to MSB
bytes; all three bytes must be individually ACK’d by
the EEPROM.
cSCK
cSDA
cSCK
cSDA
cSCK
cSDA
cSCK
cSDA
START CONDITION
STOP CONDITION
SAMPLE DATA BIT
ACK BIT
ACK
2314D–FPSLI–2/04
00 00 00 \h
131072 \d