Z86D73 Datasheet, PDF (64/92 Pages) Zilog, Inc. – 40/44/48-Pin Low-Voltage IR OTP

Z86D73
40/44/48-Pin Low-Voltage IR OTP
58
Port Configuration Register (PCON)
The PCON register (Figure 33) configures the comparator output on Port 3. It is
located in the expanded register 2 at Bank F, location 00.
PCON (FH) 00H
D7 D6 D5 D4 D3 D2 D1 D0
* Default setting after reset
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)
Figure 33. 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 0ort 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.
Port 0 Output Mode (D2)
Bit 2 controls the output mode of port 0. A 1 in this location sets the output to
push-pull, and a 0 sets the output to open-drain.
PS019402-1103
PRELIMINARY