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X68C75PI Datasheet(PDF) 6 Page - Xicor Inc.

Part # X68C75PI
Description  Port Expander and E2 Memory
PDF  26 Pages
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Manufacturer  XICOR [Xicor Inc.]
Direct Link  http://www.xicor.com
Logo XICOR - Xicor Inc.

X68C75PI Datasheet(HTML) 6 Page - Xicor Inc.

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6
X68C75 SLIC® E2
Figure 5. Setting BPR Command Sequence
The BPR format and block map are illustrated above.
The command sequence is illustrated to the right.
Figure 4. Block Protect Register Format
MSB
LSB
0
1
2
3
4
5
6
7
BLOCK
ADDRESS
0000-03FF
0400-07FF
0800-0BFF
0C00-0FFF
1000-13FF
1400-17FF
1800-1BFF
1C00-1FFF
“1” = Protect, “0” = Unprotect Block Specified
2899 ILL F06.1
AA
b2
P 555
b1 b0
55
b2
AAA
AAA
b1 b0
A0
b2
P 555
b1 b0
AA
b2
P 555
b1 b0
C0
b2
P
2899 ILL F07.1
b1 b0
Write BPR mask value
to any address
Reference the A15–A13
setting in E2M register
Delay of tWC
Exit Routine
(BPR Register Set Global SDP Set)
b2 b1 b0
P
P = Address bit (A12) of the
memory plane not being read.
0000
0400
07FF
FFFF
E000
2899 ILL F07B.2
ISR/RESET VECTORS
USER
APPLICATION
CODE/DATA
8K BYTES OF BYTE
ALTERABLE DUAL
PLANE ARCHITECTURED
NON-VOLATILE MEMORY
(MAPPABLE TO ANY 8K
PAGE BY THE E2M BITS 2–0)
SFR (SPECIAL FUNCTION
REGISTERS) BLOCK
MAPPABLE TO ANY 1K
PAGE BY THE SFRM
REGISTER.
E150
E000
400
7FF
FFC0
FFFF
FF00
SLIC
SLIC
Figure 6. Microcontroller Map



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