TMP86xy49UG/F/NG Toshiba, TMP86xy49UG/F/NG Datasheet - Page 226

• Manufacturer Part Number: TMP86xy49UG/F/NG
• Manufacturer: Toshiba

Specifications of TMP86xy49UG/F/NG

• Package: LQFP64/QFP64/SDIP64
• Rom Types (m=mask,p=otp,f=flash): M/P/F
• Rom Size: 16/32/60
• Ram Size: 512/1K/2K
• Driver Led: 13
• Driver Lcd: -
• Spi/sio Channels: 2
• Uart/sio Channels: 2
• I2c/sio Channels: 1
• High-speed Serial Output: -
• Adc 8-bit Channels: -
• Adc 10-bit Channels: 16
• Da Converter Channels: -
• Timer Counter 18-bit Channel: -
• Timer Counter 16-bit Channel: 2
• Timer Counter 8-bit Channel: 4
• Motor Channels: -
• Watchdog Timer: Y
• Dual Clock: Y
• Clock Gear: -
• Number Of I/o Ports: 56
• Power Supply (v): 4.5 to 5.5

16.6.5 Restart
SDA pin
SCL pin
SCL (Bus)
LRB
BB
PIN
transferring data. The following explains how to restart a serial bus interface circuit.
pin is released. Since a stop condition is not generated on a bus, a bus is assumed to be in a busy state from
other devices. Test the BB until it becomes “0” to check that the SCL pin of a serial bus interface circuit is
released. Test the LRB until it becomes “1” to check that the SCL line on a bus is not pulled-down to the low
level by other devices. After confirming that a bus stays in a free state, generate a start condition with proce-
dure " 16.6.2 Start condition and slave address generation ".
restarting to confirm that a bus is free until the time to generate a start condition.
Restart is used to change the direction of data transfer between a master device and a slave device during
Clear “0” to the MST, TRX and BB and set “1” to the PIN. The SDA pin retains the high-level and the SCL
In order to meet setup time when restarting, take at least 4.7 µs of waiting time by software from the time of
Note:When the master is in the receiver mode, it is necessary to stop the data transmission from the slave devcie
before the STOP condtion is generated. To stop the transmission, the master device make the slave device
receiving a negative acknowledge. Therefore, the LRB is "1" before generating the Restart and it can not be
confirmed that SCL line is not pulled-down by other devices. Please confirm the SCL line state by reading the
port.
"0"
"0"
"0"
"1"
Figure 16-14 Timing Diagram when Restarting
SDA pin
"1"
"1"
"0"
"1"
SCL pin
PIN
BB (Read)
Figure 16-13 Stop Condition Generation
MST
TRX
BB
PIN
TRX
MST
BB
PIN
Page 209
"1"
"1"
"1"
"1"
MST
TRX
BB
PIN
4.7
µ
Stop condition
s (Min)
Start condition
TMP86PM49UG