sak-c868p-1rr Infineon Technologies Corporation, sak-c868p-1rr Datasheet - Page 29

• Manufacturer Part Number: sak-c868p-1rr
• Description: 8 - Bit Cmos Microcontroller
• Manufacturer: Infineon Technologies Corporation

3.3.2
The various chip modes supported are shown in
Figure 3-2
A valid hardware reset would, of course, override any of the above entry or exit
procedures.
Table 3-1
Operating Mode
(Chipmode)
Normal Mode
Normal XRAM Mode
Bootstrap XRAM Mode Not possible
Bootstrap Mode
User’s Manual
Software
Hardware
Chip Modes
Hardware and Software Selection of Chipmodes
Bootstrap
Entry and exit of Chip Modes
Mode
Hardware Selection
ALE/BSL pin = high
RESET rising edge
Not possible
ALE/BSL pin = low
RESET rising edge
3-5
Bootstrap
XRAM
Mode
Normal
Mode
Figure
Software Selection
ALE/BSL = don’t care;
setting bits BSLEN, SWAP = 0,0;
execute unlocking sequence
setting bits BSLEN,SWAP = 0,1;
execute unlocking sequence
setting bits BSLEN,SWAP = 1,1;
execute unlocking sequence
ALE/BSL = don’t care;
setting bits BSLEN, SWAP = 1,0;
execute unlocking sequence
3-2.
Memory Organization
Normal
V 1.0, 2003-01
XRAM
Mode
C868