ATA6613C_14 Datasheet, PDF (261/312 Pages) ATMEL Corporation – 8K/16K Flash Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Figure 5-119. Programming the Flash Waveforms⁽¹⁾
F
DATA
XA1
XA0
BS1
XTAL1
WR
RDY/BSY
RESET +12V
OE
PAGEL
BS2
A
B
C
D
E
B
C
D
E
G
H
0x10
ADDR. LOW DATA LOW DATA HIGH
XX
ADDR. LOW DATA LOW DATA HIGH
XX
ADDR. HIGH
XX
Note: 1. “XX” is do not care. The letters refer to the programming description above.
5.24.7.5 Programming the EEPROM
The EEPROM is organized in pages (see Table 5-125 on page 258). When programming the 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 Section 5.24.7.4 “Programming the Flash” on page 259 for details on
command, address and data loading):
1. A: Load command “0001 0001”.
2. G: Load address high byte (0x00 - 0xFF).
3. B: Load address low byte (0x00 - 0xFF).
4. C: Load data (0x00 - 0xFF).
5. E: Latch data (give PAGEL a positive pulse).
K: Repeat 3 through 5 until the entire buffer is filled.
L: Program EEPROM page
1. Set BS1 to “0”.
2. Give WR a negative pulse. This starts programming of the EEPROM page. RDY/BSY goes low.
3. Wait until to RDY/BSY goes high before programming the next page (see Figure 5-120 on page 262 for signal
waveforms).
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