參數(shù)資料
型號: HC05K3GRS
英文描述: 68HC05K3 General Release Specification
中文描述: 68HC05K3一般版本規(guī)范
文件頁數(shù): 96/132頁
文件大?。?/td> 1188K
代理商: HC05K3GRS
Technical Data
MC68HC05K3 — Revision 4.0
96
Personality EEPROM (PEEPROM)
MOTOROLA
Personality EEPROM (PEEPROM)
9.9 Serial Bulk Erase Sequence
The signal timing on the IRQ and PB0 pins is shown in
Figure 9-8
. The
personality EEPROM can be bulk erased by using this sequence:
1.
Follow the serial programming mode entry routine as specified in
9.6.3 PEEPROM Serial Programming Mode Entry
.
2.
Keep the DATA signal at 0 Vdc.
3.
Clock the SEL/CLK signal line to 0 Vdc and back to V
SELCKH
(first
select bit).
4.
Raise the DATA signal to V
DDS
.
Clock the SEL/CLK signal line to 0 Vdc and back to V
SELCKH
(second select bit).
5.
6.
Clock the SEl/CLK signal line to 0 Vdc. Do not bring the SEL/CLK
signal line back to V
SELCKH
as in other select sequences (third
select bit). This starts the bulk erase sequence.
7.
After a time, t
ERBK
, drive the RESET pin to 0 V to complete the
bulk erase sequence. This must be done to prevent the part from
entering an unkown state.
8.
While RESET is held low, the pins can be conditioned for the next
sequence.
This completes the bulk erase sequence. The device can now be
programmed by going to the serial programming sequence or verified by
going to the serial verification sequence.
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