BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 446

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.14.6.5 Transmitter/Receiver Selection
I2C0CR2<TRX> is cleared to 0, it is configured as a receiver.
bit (R/W) sent from the master is 1, and is cleared to 0 if the direction bit is 0.
returned from the slave device, if the transmitted direction bit is 1, and is set to 1 if the
direction bit is 0. If no acknowledge is returned, I2C0SR<TRX> remains unchanged.
detected on the bus. Table 3.14.5 summarizes the operation of I2C0SR<TRX> in slave and
master modes.
recognized and bits immediately following a start condition are handled as data. Therefore,
I2C0SR<TRX> is not changed by hardware.
Note: When I2C0CR1<NOACK> = 1, the slave address detection and general call detection are disabled, and
Slave
mode
Master
mode
When I2C0CR2<TRX> is set to 1, I
In I
In master mode, I2C0SR<TRX> is cleared to 0 by hardware, after acknowledge is
I2C0SR<TRX> is cleared to 0 by hardware when a stop condition or arbitration lost is
When I
Mode
2
thus I2C0SR<TRX> remains unchanged.
Table 3.14.5 I2C0SR<TRX> operation in slave and master modes
C data transfer in slave mode, I2C0SR<TRX> is set to 1 by hardware if the direction
2
C is used with the free data format, the slave address and direction bit are not
Direction bit
0
1
0
1
TENTATIVE
When the received slave address
matches the slave address set in
I2C0AR<SA>
When the ACK signal is returned.
Condition for state change
TMPA900CM- 445
2
C is configured as a transmitter. When
Changed <TRX>
state
0
1
1
0
TMPA900CM
2009-10-14