SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 415

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

Signal
Figure 21-7 Connection to Port Logic (Functional Approach)
A priority ranking determines which function controls the shared pin:
Table 21-4
Priority
1
2
3
Note: For the generation of
User’s Manual
Direction
CLKEN
FOUT_active
PortLatch
f
f
While
The port latch P20.8 must be ‘0’ in order to maintain the
pin.
OUT
CPU
f
OUT
in the C164CM is an alternate function of pin P20.8/CLKOUT/FOUT.
f
OUT
Priority Ranking for Shared Output Pin
Function
CLKOUT
FOUT
General purpose IO
is disabled, the pin is controlled by the port latch (see
f
OUT
pin FOUT must be switched to output, i.e. DP20.8 = ‘1’.
0
1
MUX
21-19
"1"
0
1
0
1
MUX
MUX
Control
CLKEN = ‘1’, FOEN = ‘x’
CLKEN = ‘0’, FOEN = ‘1’
CLKEN = ‘0’, FOEN = ‘0’
f
OUT
Power Management
C164CM/C164SM
inactive level on the
Figure
Derivatives
MCA04481
V1.0, 2002-02
FOUT
21-7).