Page 206
16. Serial Bus Interface(I2C Bus) Ver.-D (SBI)
16.6 Data Transfer of I2C Bus
T
5CL8
16.6.3.1 When the MST is “1” (Master mode)
Check the TRX and determine whether the mode is a transmitter or receiver.
(1) When the TRX is “1” (Transmitter mode)
Test the LRB. When the LRB is “1”, a receiver does not request data. Implement the process to
generate a stop condition (Described later) and terminate data transfer.
When the LRB is “0”, the receiver requests next data. When the next transmitted data is other than
8 bits, set the BC, set the ACK to “1”, and write the transmitted data to the SBIDBR. After writing
the data, the PIN becomes “1”, a serial clock pulse is generated for transferring a next 1 word of data
from the SCL pin, and then the 1 word of data is transmitted. After the data is transmitted, and an
INTSBI interrupt request occurs. The PIN become “0” and the SCL pin is set to low level. If the data
to be transferred is more than one word in length, repeat the procedure from the LRB test above.
Figure 16-10 Example of when BC = “000”, ACK = “1”
(2) When the TRX is “0” (Receiver mode)
When the next transmitted data is other than of 8 bits, set the BC again. Set the ACK to “1” and
read the received data from the SBIDBR (Reading data is undefined immediately after a slave
address is sent). After the data is read, the PIN becomes “1”. A serial bus interface circuit outputs a
serial clock pulse to the SCL pin to transfer next 1-word of data and sets the SDA pin to “0” at the
acknowledge signal timing.
An INTSBI interrupt request occurs and the PIN becomes “0”. Then a serial bus interface circuit
outputs a clock pulse for 1-word of data transfer and the acknowledge signal each time that received
data is read from the SBIDBR.
Figure 16-11 Example of when BC = “000”, ACK = “1”
D7
D6
2
3
4
5
6
7
8
9
D5
D4
D3
D2
D1
D0
1
Acknowledge
signal from a
receiver
SCL pin
SDA pin
PIN
INTSBI
interrupt request
Write to SBIDBR
D7
D6
2
3
4
5
6
7
8
9
D5
D4
D3
D2
D1
New D7
D0
1
Acknowledge
signal to a
transmitter
SCL pin
SDA pin
PIN
INTSBI
interrupt request
Read SBIDBR
Содержание CEM2100/00
Страница 2: ...2 ...
Страница 3: ...BLOCK DIAGRAM ...
Страница 4: ...WIRING DIAGRAM 4 ...
Страница 5: ...CIRCUIT DIAGRAM MAIN BOARD 5 ...
Страница 6: ...6 ...
Страница 7: ......
Страница 11: ...PCB LAYOUT MAIN BOARD TOP SIDE VIEW 11 ...
Страница 12: ...PCB LAYOUT MAIN BOARD BOTTOM SIDE VIEW 12 ...
Страница 13: ...PCB LAYOUT PANEL BOARD TOP SIDE VIEW ...
Страница 14: ...14 PCB LAYOUT PANEL BOARD BOTTOM SIDE VIEW ...
Страница 15: ...PCB LAYOUT REMOTE BOARD TOP SIDE VIEW 15 ...
Страница 16: ...PCB LAYOUT REMOTE BOARD BOTTOM SIDE VIEW 16 ...
Страница 17: ...PCB LAYOUT TUNER BOARD TOP SIDE VIEW 17 ...
Страница 18: ...PCB LAYOUT TUNER BOARD BOTTOM SIDE VIEW 18 ...
Страница 19: ...PCB LAYOUT SD BOARD TOP SIDE VIEW ...
Страница 20: ...20 PCB LAYOUT CD CONNECTOR TOP SIDE VIEW ...
Страница 21: ...PCB LAYOUT ISO BOARD BOTTOM SIDE VIEW 21 ...
Страница 22: ...22 SET EXPLODER VIEW DRAWING ...
Страница 23: ...1 of 2 CEM2100 Trouble shooting Trouble shooting Trouble shooting Trouble shooting ...
Страница 33: ...7 0 6SHFLILFDWLRQ 6 VWHP EORFN GLDJUDP ...
Страница 110: ...7 0 6SHFLILFDWLRQ 5HYLVLRQ KLVWRU 2 2 s u 2 u 2 7 t 2 2 2 S S 5 2 v 2 2 ...
Страница 111: ...8 Bit Microcontroller TLCS 870 C Series T5CL8 ...
Страница 113: ...Revision History Date Revision 2008 7 31 1 First Release ...
Страница 114: ......
Страница 122: ...viii ...
Страница 126: ...Page 4 1 3 Block Diagram T5CL8 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 130: ...Page 8 1 4 Pin Names and Functions T5CL8 ...
Страница 155: ...Page 33 T5CL8 ...
Страница 156: ...Page 34 2 Operational Description 2 3 Reset Circuit T5CL8 ...
Страница 186: ...Page 64 5 I O Ports 5 8 Port P7 P77 to P70 T5CL8 ...
Страница 194: ...Page 72 6 Watchdog Timer WDT 6 3 Address Trap T5CL8 ...
Страница 214: ...Page 92 8 16 Bit TimerCounter 1 TC1 8 3 Function T5CL8 ...
Страница 270: ...Page 148 12 Asynchronous Serial interface UART1 12 9 Status Flag T5CL8 ...
Страница 280: ...Page 158 13 Asynchronous Serial interface UART2 13 9 Status Flag T5CL8 ...
Страница 332: ...Page 210 16 Serial Bus Interface I2C Bus Ver D SBI 16 6 Data Transfer of I2C Bus T5CL8 ...
Страница 342: ...Page 220 17 10 bit AD Converter ADC 17 6 Precautions about AD Converter T5CL8 ...
Страница 354: ...Page 232 19 Flash Memory 19 4 Access to the Flash Memory Area T5CL8 ...
Страница 388: ...Page 266 21 Input Output Circuit 21 2 Input Output Ports T5CL8 ...
Страница 397: ...Page 275 T5CL8 23 Package Dimensions LQFP64 P 1010 0 50D Rev 01 Unit mm ...
Страница 398: ...Page 276 23 Package Dimensions T5CL8 ...
Страница 400: ......
Страница 403: ...TC94B14MFG 2010 01 12 3 Pin Layout and Block Diagram Top View Pin Layout Top View TC94B14MFG Top View TEST1 ...
Страница 428: ...TC94B14MFG 2010 01 12 28 Package LQFP80 P 1212 0 50F Weight 0 6 g Typical ...