HCSXXX Datasheet, PDF (25/28 Pages) Microchip Technology – Memory Programming Specification

5.8 Programming Waveforms (HCS500)
FIGURE 5-9:
PROGRAMMING WAVEFORMS
TCLKL
TCMD
TPP1 TPP3
TCLKH
CLK
TADDR
TDS
TDATA
µC Data
LSb
TPP2 TPP4
MSb LSb
MSb
MSb
Decoder
Data
Start Command
Command Byte
Configuration Byte Least Significant Byte
A
B
C
D
E
HCSXXX
TDATA TACK
TWT2
LSb
MSb
TAW
Most Significant Byte Acknowledge
F
G
H
5.9 Programming Waveforms (HCS512)
FIGURE 5-10:
PROGRAMMING WAVEFORMS
MCLR
CLK
(Clock)
DAT
(Data)
TPS
TPH1
TPH2
TCLKL
TCLKH
TACK
TACKH
bit 0 bit 1
bit 78 bit 79
Ack
Enter Program Mode
80-bit Data Package
Acknowledge
pulse
 2004 Microchip Technology Inc.
Preliminary
DS41256A-page 25