ata6616 ATMEL Corporation, ata6616 Datasheet - Page 258

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

Figure 4-100. Programming the Flash Waveforms
4.22.7.5
258
PAGEL / BS1
RESET +12V
XA1 / BS2
RDY/BSY
XTAL1
DATA
ATA6616/ATA6617 [Preliminary]
XA0
WR
OE
Programming the EEPROM
0x10
A
Note:
The EEPROM is organized in pages, see
EEPROM, the program data is latched into a page buffer. This allows one page of data to be
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
Data loading):
A: Load Command “0001 0001
G: Load Address High Byte (0x00 - 0xFF).
B: Load Address Low Byte (0x00 - 0xFF).
C: Load Data (0x00 - 0xFF).
E: Latch data (give PAGEL a positive pulse).
K: Repeat A through E until the entire buffer is filled.
L: Program EEPROM page
ADDR. LOW
1. Set BS1 to “0”.
2. Give WR a negative pulse. This starts programming of the EEPROM page. RDY/BSY
3. Wait until to RDY/BSY goes high before programming the next page (See
B
goes low.
for signal waveforms).
1. “XX” is don’t care. The letters refer to the programming description above.
DATA LOW
C
DATA HIGH
“Programming the Flash” on page 256
D
(1)
XX
E
ADDR. LOW
B
b
”.
DATA LOW
C
F
Table 4-73 on page
DATA HIGH
D
DRAFT
XX
E
for details on Command, Address and
ADDR. HIGH
G
253. When programming the
H
XX
Figure 4-101
9132A–AUTO–10/08