BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 417

• 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

3.14.4
3.14.4.1 Data Transfer Procedure in I
1. Device Initialization
Note: The initialization of I
These settings enable acknowledge operation, slave address match detection and general
call detection and set the data length to 8 bits. Set t
addressing format.
to 1 and I2C0CR2<SWRES[1:0]> to 0y00 to configure the device as a slave receiver.
Operational Descriptions
CHK _ PORT:
I2C0CR2<I2CM> to 1 to enable I
Programming example: Initializing the device
After ensuring that the I2C0DA and I2C0CL pins are high (bus free), set
Next, set I2C0CR1<ACK> to 1, I2C0CR1<NOACK> to 0 and I2C0CR1<BC> to 0y000.
Then, set the slave address in I2C0AR<SA> and set I2C0AR<ALS> to 0 to select the
Finally, set I2C0CR2<MST>, I2C0CR2<TRX> and I2C0CR2<BB> to 0, I2C0CR2<PIN>
generated by any device after all the devices connected to the bus have been initialized. If this constraint is
not observed, another device may start a transfer before the initiaization of I
may not be received properly.
r1
CMP
BNE
(I2C0CR2) ←
(I2C0CR1) ←
(I2C0AR)
(I2C0CR2) ←
2
C must be completed within a certain period of time in which no start condition is
←
←
(GPIOCDATA）
r1, #0xC0
CHK _ PORT
0x18
0x16
0xA0
0x18
TENTATIVE
TMPA900CM- 416
2
C Bus Mode
2
C.
; Check whether the external pins are high.
; Enable I
; Enable acknowledge operation and set I2C0CR1<SCK> = 0y110.
; Set the slave address to 1010000 and select addressing format.
; Select slave receiver mode.
2
C.
HIGH
and t
LOW
2
C has been completed and data
in I2C0CR1<SCK>.
TMPA900CM
2009-10-14