Page 120
8. I/O Ports
8.4 Serial Interface Selecting Function
TMP89FM42
RA005
Note 2: It is recommended to clear the interrupt latch for the applicable serial interface immediately after changing SERSEL. Inter-
rupt latches are common to INTRXD and INTSIO and to INTSBI and INTSIO. Therefore, if an interrupt occurs before or
after SERSEL is switched, it is difficult to tell which function has caused the interrupt.
Note 1: The operation for changing UATCNG must be executed while the applicable serial interface operations are stopped.
Note 1: Can be used as a port. (Set the function register (PxFC) to "0".)
UART input/output change control register
UATCNG
(0x0F57)
7
6
5
4
3
2
1
0
Bit Symbol
-
-
-
-
-
-
UAT1IO
UAT0IO
Read/Write
R
R
R
R
R
R
R/W
R/W
After reset
0
0
0
0
0
0
0
0
RXD pin
TXD pin
UAT1IO
Select UART1 input/ output port
0:
1:
P91
P90
P90
P91
UAT0IO
Select UART0 input/ output port
SERSEL
<SERSEL2>="0"
SERSEL
<SERSEL2>="1"
SERSEL
<SERSEL2>="0"
SERSEL
<SERSEL2>="1"
0:
1:
P21
P20
PB5
PB4
P20
P21
PB4
PB5
Table 8-20 Select input/output port and interrupt
SERSEL
<SRSEL0
>
SERSEL
<SRSEL2
>
UATCNG
<UAT0IO
>
Port
Interrupt
UART0/SIO0
I2C0/SIO0
PB4
PB5
PB6
P20
P21
P22
P23
P24
P25
IL7
IL6
IL15
00:
0:
0:
Note
1
Note
1
Note
1
TXD0
RXD0
Note
1
SDA0
SCL0
Note
1
INTTXD0
INTRXD0
INTSBI0
1:
RXD0
TXD0
1:
0:
TXD0
RXD0
Note
1
Note
1
Note
1
Note
1
1:
RXD0
TXD0
01:
0:
0:
Note
1
Note
1
Note
1
TXD0
RXD0
Note
1
SO0
SI0
SCLK
0
INTTXD0
INTRXD0
INTSIO0
1:
RXD0
TXD0
1:
0:
TXD0
RXD0
Note
1
Note
1
Note
1
Note
1
1:
RXD0
TXD0
10:
0:
0 or 1:
Note
1
Note
1
Note
1
SO0
SI0
SCLK
0
SDA0
SCL0
Note
1
-
INTSIO0
INTSBI0
1:
0 or 1:
SO0
SI0
SCLK
0
Note
1
Note
1
Note
1
11:
0 or 1:
0 or 1:
Reserved
Содержание TLCS-870/C1 Series
Страница 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 ...
Страница 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Страница 4: ......
Страница 14: ......
Страница 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Страница 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Страница 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Страница 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Страница 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Страница 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Страница 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Страница 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Страница 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Страница 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Страница 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Страница 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Страница 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Страница 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Страница 336: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 Note 1 Make sure that you set the C register to 0x00 LD FLSCR2 0xD5 ...
Страница 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Страница 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Страница 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Страница 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Страница 406: ...26 Package Dimensions TMP89FM42 ...
Страница 408: ......