C515C_9711 Datasheet, PDF (77/268 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C515C
Delay = 1 State
=1
V_CC
1 _"1"
p1 ^"1"
p2 ^"1"
p3
QPL
"1"
QDL
"0"
&
PMOD
"1"
HWPD
"1"
=1
Input Data
(read pin)
1
& _"1"
n1
1
V_SS
CMOS
&
"0" Port
Pin
p5
QPL : Port Latch, Output Q
QDL : Direction Latch, Output Q
MCS02652
Figure 6-11
Bidirectional Port Structure - Output Mode - "0"
The FET n1 is switched on and is driving a '0' at the port pin. FETs p1, p2, p3 are switched off.
Semiconductor Group
6-14
1997-11-01