ST10F269-T3
Port 3 pins with alternate output functions are:
T6OUT, T3OUT, TxD0, BHE and CLKOUT.
When the on-chip peripheral associated with
a Port 3 pin is configured to use both the alternate
input and output function, the descriptions above
apply to the respective current operating mode.
The direction must be set accordingly. Port 3 pins
with alternate input/output functions are: MTSR,
MRST, RxD0 and SCLK.
Note: Enabling the CLKOUT function automati-
cally enables the P3.15 output driver. Set-
ting bit DP3.15=鈥?鈥?is not required.
Figure 28 :
Block Diagram of Port 3 Pin with Alternate Input or Alternate Output Function
Write ODP3.y
Open Drain
Latch
Read ODP3.y
Internal Bus
Write DP3.y
Direction
Latch
Read DP3.y
Write DP3.y
Alternate
Data Output
Port Output
Latch
Read P3.y
Port Data
Output
&
Output
Buffer
P3.y
Clock
1
MUX
0
Alternate
Data
Input
Input
Latch
y = 13, 11...0
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