PIC17C42 Microchip Technology, PIC17C42 Datasheet - Page 106

• Manufacturer Part Number: PIC17C42
• Description: High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
• Manufacturer: Microchip Technology

PIC17C4X
14.4.2
To minimize current consumption, all I/O pins should be
either at V
current from the I/O pin. I/O pins that are hi-impedance
inputs should be pulled high or low externally to avoid
switching currents caused by floating inputs. The
T0CKI input should be at V
from on-chip pull-ups on PORTB should also be con-
sidered, and disabled when possible.
DS30412C-page 106
MINIMIZING CURRENT CONSUMPTION
DD
, or V
SS
, with no external circuitry drawing
DD
or V
SS
. The contributions
14.5
The code in the program memory can be protected by
selecting the microcontroller in code protected mode
(PM2:PM0 = '000').
In this mode, instructions that are in the on-chip pro-
gram memory space, can continue to read or write the
program memory. An instruction that is executed out-
side of the internal program memory range will be inhib-
ited from writing to or reading from program memory.
If the code protection bit(s) have not been pro-
grammed, the on-chip program memory can be read
out for verification purposes.
Note:
Note:
Code Protection
PM2 does not exist on the PIC17C42. To
select
mode, PM1:PM0 = '00'.
Microchip does not recommend code pro-
tecting windowed devices.
code
1996 Microchip Technology Inc.
protected
microcontroller