ata6616 ATMEL Corporation, ata6616 Datasheet - Page 259

• Manufacturer Part Number: ata6616
• Description: Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
• Manufacturer: ATMEL Corporation

Figure 4-101. Programming the EEPROM Waveforms
4.22.7.6
4.22.7.7
4.22.7.8
9132A–AUTO–10/08
DRAFT
PAGEL / BS1
RESET +12V
Reading the Flash
Reading the EEPROM
Programming the Fuse Low Bits
XA1 / BS2
RDY/BSY
XTAL1
DATA
XA0
WR
OE
The algorithm for reading the Flash memory is as follows (refer to
page 256
The algorithm for reading the EEPROM memory is as follows (refer to
on page 256
The algorithm for programming the Fuse Low bits is as follows (refer to
on page 256
1. A: Load Command “0000 0010
2. G: Load Address High Byte (0x00 - 0xFF).
3. B: Load Address Low Byte (0x00 - 0xFF).
4. Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.
5. Set BS1 to “1”. The Flash word high byte can now be read at DATA.
6. Set OE to “1”.
1. A: Load Command “0000 0011
2. G: Load Address High Byte (0x00 - 0xFF).
3. B: Load Address Low Byte (0x00 - 0xFF).
4. Set OE to “0”, and BS1 to “0”. The EEPROM Data byte can now be read at DATA.
5. Set OE to “1”.
1. A: Load Command “0100 0000
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Give WR a negative pulse and wait for RDY/BSY to go high.
0x11
A
ADDR. HIGH
for details on Command and Address loading):
G
for details on Command and Address loading):
for details on Command and Data loading):
ADDR. LOW
B
DATA
C
XX
E
ATA6616/ATA6617 [Preliminary]
b
b
b
ADDR. LOW
”.
”.
”.
B
DATA
C
K
XX
E
L
“Programming the Flash” on
“Programming the Flash”
“Programming the Flash”
259