HCSXXX Datasheet, PDF (23/28 Pages) Microchip Technology – Memory Programming Specification

HCSXXX
5.6 Programming Waveforms (HCS360, HCS361)
FIGURE 5-5:
PROGRAMMING WAVEFORMS
Enter Program
Mode
DATA
(Data)
S2/S3
(Clock)
S1
bit 0 bit 1 bit 2 bit 3
T₂
TCLKL
TDH
bit 14 bit 15 bit 0 bit 1 bit 2 bit 3
TCLKH
T₁
TDS
bit 0 of Word 0
Data for Word 0 (KEY_0)
Repeat for each word
TWC
bit 14 bit 15
Note 1: Unused button inputs to be held to ground during the entire programming sequence.
The VDD₂p_: in _TmhuestVbDe_Dtapkinenmutostgbroeutnadkeanftetor agrporuongdraamfte/vrearifPyrcoygcrlaem. _{/Verify cycle.}
Acknowledge Pulse
bit 16 bit 17
Data for Word 1
FIGURE 5-6:
VERIFY WAVEFORMS
End of Programming Cycle
DATA
(Data)
S2/S3
(Clock)
bit 190 bit 191
Ack
TWC
Beginning of Verify Cycle
Data from Word0
bit 0
bit 1 bit 2 bit 3
TDV
bit 14
S1
bit 15 bit 16 bit 17
Note 1: A Verify sequence is performed only once immediately after the Program cycle.
bit 190 bit 191
 2004 Microchip Technology Inc.
Preliminary
DS41256A-page 23