tmp89fm42 TOSHIBA Semiconductor CORPORATION, tmp89fm42 Datasheet - Page 128

• Manufacturer Part Number: tmp89fm42
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

8.3 I/O Port Registers
8. I/O Ports
RA005
Port P9 output latch
Port P9 input/output control
Port P9 function control
Port P9 output control
Port P9 built-in pull-up resistor control
P9OUTCR
(0x0F3D)
(0x0F23)
(0x0F4A)
(0x0F30)
(0x0009)
P9DR
P9CR
P9FC
P9PU
Note: Symbol "I" means secondary function input. Symbol "O" means secondary function output.
Note 1: The built-in pull-up resistor is connected. (The resistor is connected only when the port is used in the input mode or as the
open drain output. Under any other conditions, setting to "1" does not make the resistor connected.)
Function
Function
Function
Function
Function
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Bit Symbol
Bit Symbol
Bit Symbol
Bit Symbol
Bit Symbol
After reset
After reset
After reset
After reset
After reset
0:
1:
0:
1:
0:
1:
0:
1:
0:
1:
R
R
R
R
R
7
0
7
0
7
0
7
0
7
0
-
-
-
-
-
R
R
R
R
R
6
0
6
0
6
0
6
0
6
0
-
-
-
-
-
R
R
R
R
R
5
0
5
0
5
0
5
0
5
0
-
-
-
-
-
Page 114
R
R
R
R
R
4
0
4
0
4
0
4
0
4
0
-
-
-
-
-
R
R
R
R
R
3
0
3
0
3
0
3
0
3
0
-
-
-
-
-
R
R
R
R
R
2
0
2
0
2
0
2
0
2
0
-
-
-
-
-
Outputs L level when the
output mode is selected.
Outputs H level when the
output mode is selected.
(Serves as Hi-Z or pull-up
depending on settings of
P9OUTCR and P9PU.)
Input mode (port input)
Output mode (port output)
Port function
C-MOS output
Open drain output
The built-in pull-up resistor
is not connected.
Note 1
TXD1 (O)
TXD1 (O)
RXD1 (I)
P9OUT1
P9CR1
P9FC1
P9PU1
R/W
R/W
R/W
R/W
R/W
P91
1
0
1
0
1
0
1
0
1
0
TMP89FM42
TXD1 (O)
TXD1 (O)
RXD1 (I)
P9OUT0
P9CR0
P9FC0
P9PU0
R/W
R/W
R/W
R/W
R/W
P90
0
0
0
0
0
0
0
0
0
0