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18. Serial Bus Interface (SBI)
18.4 Functions
TMP89FM42
RA001
Figure 18-13 Example When Master B is a Serial Bus Interface Circuit
18.4.12Slave address match detection monitor
In the slave mode, SBI0SR2<AAS> is set to "1" when the received data is "GENERAL CALL" or the
received data matches the slave address setting by I2C0AR<SA> with SBI0CR1<NOACK> set at "0" and the
I
2
C bus mode is active (I2C0AR<ALS>="0").
Setting SBI0CR1<NOACK> to "1" disables the subsequent slave address match and GENERAL CALL
detections. SBI0SR2<AAS> remains at "0" even if a "GENERAL CALL" is received or the same slave
address as the I2C0AR<SA> set value is received.
When a serial bus interface circuit operates in the free data format (I2C0AR<ALS>= "1"), SBI0SR2<AAS>
is set to "1" after receiving the first 1-word of data. SBI0SR2<AAS> is cleared to "0" by writing data to the
SBI0DBR or reading data from the SBI0DBR.
Figure 18-14 Changes in the Slave Address Match Detection Monitor
SCL pin
SDA pin
SCL pin
SDA pin
D4A
1
2
3
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Master A
Master B
Stop clock output
Releasing SDA pin and SCL pin
to high level as losing arbitration.
D5A
D6A
D7A
D3A D2A D1A D0A
D6A
D7A
D5A’
D6A’
D7A’
SBI0SR2<AL>
SBI0CR2<MST>
SBI0CR2<PIN>
INTSBI0 Interrupt request
Access to SBI0DBR or
SBI0CR2
Start condition
Output of an acknowledge signal
Slave a Direction bit
SA6
SA5
SA4
SA3
SA2
SA1
SA0
R/W
SCL0 (Bus)
SDA0 (Bus)
SDA0 pin
INTSBI0 Interrupt request
Writing or reading SBI0DBR
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: ......