
243
2513L–AVR–03/2013
ATmega162/V
Reading the
Calibration Byte
page 237 for details on Command and Address loading):
1.
A: Load Command “0000 1000”.
2.
B: Load Address Low Byte, 0x00.
3.
Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA.
4.
Set OE to “1”.
Parallel Programming
Characteristics
Figure 102. Parallel Programming Timing, Including some General Timing Requirements
Figure 103. Parallel Programming Timing, Loading Sequence with Timing Requiremen
ts Note:
1. The timing requirements shown in Figure 102 (i.e., tDVXH, tXHXL, and tXLDX) also apply to load- ing operation.
Data & Contol
(DATA, XA0/1, BS1, BS2)
XTAL1
t
XHXL
t
WLWH
t
DVXH
t
XLDX
t
PLWL
t
WLRH
WR
RDY/BSY
PAGEL
t
PHPL
t
PLBX
t
BVPH
t
XLWL
t
WLBX
t
BVWL
WLRL
XTAL1
PAGEL
t
PLXH
XLXH
t
XLPH
ADDR0 (low byte)
DATA (low byte)
DATA (high byte)
ADDR1 (low byte)
DATA
BS1
XA0
XA1
LOAD ADDRESS
(LOW BYTE)
LOAD DATA
(LOW BYTE)
LOAD DATA
(HIGH BYTE)
LOAD DATA
LOAD ADDRESS
(LOW BYTE)