z86d73 ZiLOG Semiconductor, z86d73 Datasheet - Page 64

• Manufacturer Part Number: z86d73
• Description: 40/44/48-pin Low-voltage
• Manufacturer: ZiLOG Semiconductor

PS019402-1103
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.
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.
D7
* Default setting after reset
PCON (FH) 00H
D6
D5
D4
P
D3
R
E
D2
L
D1
I
M
D0
I
N
A
40/44/48-Pin Low-Voltage IR OTP
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)
R
Y
Z86D73
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