BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 420

• 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

I2C0DA pin
I2C0CL pin
I2CINT0 interrupt
I2C0CR2<PIN>
I2C0IR<IR> = 1 write
Figure 3.14.7 When I2C0CR1<BC> = 0y000 and I2C0CR1<ACK> = 1
9
acknowledge. The flow of this operation is explained below.
acting as a receiver, the SDA line on the bus remains high. The transmitter receives
this high-level signal as the negative acknowledge signal. The receiver can thus
indicate the transmitter that the data transmission is completed. After 1-bit data is
received and an interrupt request is generated, generate a stop condition to terminate
the data transfer.
before the last data bit is received:
performed. After 1-word transfer is completed, perform the following operations:
c.
The last word of the transfer is determined by pseudo communication without
To make the transmitter terminate transmission, perform the following operations
1. Read the received data from I2C0DBR.
2. Clear I2C0CR1<ACK> to 0 and set I2C0CR1<BC> to 0y000.
3. Write dummy data (0x00) to I2C0DBR to set I2C0CR2<PIN> to 1.
1. Read the received data from I2C0DBR.
2. Clear I2C0CR1<ACK> to 0 and set I2C0CR1<BC> to 0y001 (negative
3. Write dummy data (0x00) to I2C0DBR to set I2C0CR2<PIN> to 1.
When I2C0CR2<PIN> is set to 1, 1-bit transfer is performed. Since the master is
After I2C0CR2<PIN> is set to 1, 1-word transfer with no acknowledge operation is
When I2C0SR<TRX> = 0 (when receiving the last word)
acknowledge).
D7
1
I2C0DBR read
D6
2
Dummy data written to I2C0DBR
D5
3
TENTATIVE
TMPA900CM- 419
D4
4
D3
5
D2
6
D1
7
D0
8
9
Next D7
ACK signal to
transmitter
TMPA900CM
2009-10-14