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TMP92CM22
2007-02-16
92CM22-64
Port 9 Register
7 6 5 4 3 2 1 0
Bit symbol P92 P91 P90
Read/Write R/W
After reset Data from external port
(Output latch register is set to 1)
Port 9 Control Register
7 6 5 4 3 2 1 0
Bit symbol P92C P91C P90C
Read/Write W
After reset 0 0 0
Function 0: Input 1: Output
Port 9 Function Register
7 6 5 4 3 2 1 0
Bit symbol P92F P91F P90F
Read/Write W
After reset 0 0 0
Function 0: Port, SI
1: SCL
Note
0: Port
1: SO,
SDA
0: Port,
SCK input
1:SCK output
Note
Port 9 ODE Register
7 6 5 4 3 2 1 0
Bit symbol P92ODE P91ODE
Read/Write W
After reset 0 0
Function 1:Open drain 1:Open drain
Note1: Read-modify-write instruction is prohibited for the registers P9CR, P9FC, and P9ODE.
Note2: When using SI and SCK input function, set P9FC<P92F,P90F> to “0” (Function setting).
Figure 3.5.15 Register for Port 9
P9FC
(0027H)
P9
(0024H)
P9CR
(0026H)
P9ODE
(0025H)
P9CR
(0026H)
P9FC
(0027H)