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ZGP323H Datasheet(PDF) 63 Page - Zilog, Inc.

Part No. ZGP323H
Description  Programmable input glitch filter for pulse reception
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Maker  ZILOG [Zilog, Inc.]
Homepage  http://www.zilog.com
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ZGP323H Datasheet(HTML) 63 Page - Zilog, Inc.

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ZGP323H
Product Specification
PS023803-0305
Functional Description
55
FF
NOP
; clear the pipeline
6F
Stop
; enter Stop Mode
or
FF
NOP
; clear the pipeline
7F
HALT
; enter HALT Mode
Port Configuration Register
The Port Configuration (PCON) register (Figure 32) configures the comparator
output on Port 3. It is located in the expanded register 2 at Bank F, location 00.
PCON(FH)00H
Figure 32. Port Configuration Register (PCON) (Write Only)
Comparator Output Port 3 (D0)
Bit 0 controls the comparator used in Port 3. A 1 in this location brings the compar-
ator outputs to P34 and P37, and a 0 releases the Port to its standard I/O configu-
ration.
Port 1 Output Mode (D1)
Bit 1 controls the output mode of port 1. A 1 in this location sets the output to
push-pull, and a 0 sets the output to open-drain.
D7
D6
D5
D4
D3
D2
D1
D0
Comparator Output Port 3
0 P34, P37 Standard Output*
1 P34, P37 Comparator Output
Port 1
0: Open-Drain
1: Push-Pull*
Port 0
0: Open-Drain
1: Push-Pull*
Reserved (Must be 1)
* Default setting after reset


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