ST ST10F276E - Alternate Functions of Port3

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UM0404 Parallel ports
DP3 (FFC6h / E3h) SFR Reset Value: 0000h
ODP3 (F1C6h / E3h) ESFR Reset Value: 0000h
6.5.1 Alternate functions of Port3
The pins of Port3 are used for various functions which include external timer control lines,
the two serial interfaces and the control lines BHE
/ WRH and CLKOUT.
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DP3.
15
-
DP3.
13
DP3.
12
DP3.
11
DP3.
10
DP3.
9
DP3.
8
DP3.7 DP3.6 DP3.5 DP3.4 DP3.3 DP3.2 DP3.1 DP3.0
RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
Bit Function
DP3.y
Port direction register DP3 bit y
’0’: Port line P3.y is an input (high-impedance).
’1’: Port line P3.y is an output.
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--
ODP3.
13
-
ODP3.
11
ODP3.
10
ODP
3.9
ODP
3.8
ODP3
.7
ODP3
.6
ODP3
.5
ODP3
.4
ODP3
.3
ODP3
.2
ODP3
.1
ODP3
.0
RW RW RW RW RW RW RW RW RW RW RW RW RW
Bit Function
ODP3.y
Port Open Drain control register ODP3 bit y
’0’: Port line P3.y output driver in push-pull mode.
’1’: Port line P3.y output driver in open drain mode.