Page 104
8. I/O Ports
8.3 I/O Port Registers
TMP89FM42
RA005
Note: * : Don’t care
Note: i = 0 to 2, 5 to 7
Port P2 built-in pull-up resistor control
P2PU
(0x0F29)
7
6
5
4
3
2
1
0
Bit Symbol
P2PU7
P2PU6
P2PU5
-
-
P2PU2
P2PU1
P2PU0
Read/Write
R/W
R/W
R/W
R
R
R/W
R/W
R/W
After reset
0
0
0
0
0
0
0
0
Function
0:
The built-in pull-up resistor is not con-
nected.
The built-in pull-up resistor is not con-
nected.
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 con-
ditions, setting to "1" does not make the
resistor connected.)
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 con-
ditions, setting to "1" does not make the
resistor connected.)
Port P2 input data
P2PRD
(0x000F)
7
6
5
4
3
2
1
0
Bit Symbol
P2PRD7
P2PRD6
P2PRD5
P2PRD4
P2PRD3
P2PRD2
P2PRD1
P2PRD0
Read/Write
R
R
R
R
R
R
R
R
After reset
*
*
*
*
*
*
*
*
Function
If the port is used in the input mode or as
the open drain output, the contents of the
port are read. If not, "0" is read.
The contents of the port
are read without condition.
If the port is used in the input mode or as
the open drain output, the contents of the
port are read. If not, "0" is read.
Table 8-9 P2PRD Read Value (P20 to P22, P25 to P27)
Set condition
P2PRDi read value
P2CRi
P2OUTCRi
0
*
Contents of port
1
0
"0"
1
1
Contents of port
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......