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X68C75PI Datasheet(PDF) 7 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) 7 Page - Xicor Inc.

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X68C75 SLIC® E2
Figure 7. On-Chip Registers
2899 ILL F07.3C
76543210
0400
0
LAM
0
RST
A15
A14
A13
EEM*
E2 Memory Map Register
MSB
LSB
0408
PDRB
Port Data Register B
MSB
LSB
0410
PDRA
Port Data Register A
INT
INTA
INTB
ENA
ENB
ENEE
0
EOW
0418
ISR
Interrupt Status Register
IRST
1
AWO
BWO
DIRA
DIRB
STRA STRB
0420
CR
Configuration Register
MSB
LSB
0428
PPRB
Port Pin Register B
MSB
LSB
MSB
LSB
MSB
LSB
0430
PPRA
Port Pin Register A
NOTE: * The value returned by reading these registers is the complement
of the actual data. These registers are nonvolatile and a special SDP
sequence is used to alter their contents. All the other registers are
initialized by a valid reset input signal and when the device is power cycled.
0438
Special Function Register
Memory Map Register
1
0
A15
A14
A13
A12
A11
A10
SFRM*
0600
060F
16 Bytes General Purpose SRAM



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