C517A_99 Datasheet, PDF (74/218 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C517A
Addr.
Control
VV_CDCD
Q
<_ ₁
MUX
Delay
1 State
=1
<_ ₁
p1
p2
p3
Port
Pin
n1
Input Data (Read Pin)
V_SS
=1
=1
MCS03229
Figure 6-6
Port 2 Pull-up Arrangement
Port 2 in I/O function works similar to the standard port driver circuitry (next section) whereas in
address output function it works similar to Port 0 circuitry.
Semiconductor Group
6-8