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(3) Port 72 (SI/SCL)
Port 72 is a general-purpose I/O port. It is also used as SI (Data input for SIO
mode), SCL (Clock input/output for I
release hard protect.
Reset
Direction
control
(on bit basis)
P7CR write
Function
control
(on bit basis)
P7FC write
S
Output latch
P7 write
SCL output
P7 read
SI input
SCL input
C mode) for serial bus interface and input for
2
S
A
Selector
Open-drain possible:
B
P7ODE<ODEP72>
S
B
Selector
A
Figure 3.5.11 Port 72
91C824-66
TMP91C824
Programable
P-ch
pull up
P72 (SI/SCL)
2008-02-20
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