TMPA901CMXBG Toshiba, TMPA901CMXBG Datasheet - Page 401

• Manufacturer Part Number: TMPA901CMXBG
• Description: Microcontrollers (MCU) 32-bit RISC MCU 16kb ARM926EJ 16kb 200Mhz
• Manufacturer: Toshiba

Specifications of TMPA901CMXBG

• Product Summaries: Summary
• Lead Free: Yes
• Rohs Compatible Product(s): Available
• Rom (kbytes): -
• Rom Type: ROMless
• Ram (kbytes): 32
• Number Of Pins: 177
• Package: BGA
• Vcc: 3V
• Tft Lcd Controller: Y
• Touchscreen Controller: Y
• Usb Host Fs With Phy: Y
• Usb Device Hs With Phy: Y
• Sd Host Controller: -
• Cmos Image Sensor Interface: -
• I2s: 1
• Ssp (ch) Spi: 1
• I2mc/sio (ch): 1
• Uart/sio (ch): 2
• External Bus Interface: Y
• Cs/wait Controller (ch): 4
• Dma Controller: 8
• 10-bit Ad Converter: 4
• 12-bit Da Converter: -
• 16-bit Timer / Counter: 6
• Real Time Clock: Y
• Watchdog Timer: Y
• Osc Freq Detect: Y
• Low-power Modes: Y
• Lead Free Status / Rohs Status: Details

I2CINT0 interrupt request
SCL (line)
Internal SDA output
(Master A)
Internal SDA output
(Master B)
SDA line
SDA line
SCL line
3.14.6.6 Generation of Start and Stop Conditions
Start condition
and I2C0CR2<PIN> causes a start condition, the slave address written in the data buffer
register and direction bit to be sent out on the bus. I2C0CR1<ACK> must be set to 1 before
a start condition is generated.
and 0 to I2C0CR2<BB> initiates a sequence for sending out a stop condition on the bus.
busy) when a start condition is detected on the bus, and is cleared to 0 (bus free) when a
stop condition is detected.
after the SCL line is released.
When I2C0SR<BB> = 0, writing 1 to I2C0CR2<MST>, I2C0CR2<TRX>, I2C0CR2<BB>
When I2C0SR<BB> = 1, writing 1 to I2C0CR2<MST>, I2C0CR2<TRX>, I2C0CR2<PIN>
At this time, if the SCL line is pulled low by another device, a stop condition is generated
The bus status can be checked by reading I2C0SR<BB>. I2C0SR<BB> is set to 1 (bus
Figure 3.14.15 Start condition and slave address generation
A6
1
Figure 3.14.16 Stop condition generation
A5
2
SDA line
SCL line
A4
Slave address and direction bit
3
TMPA901CM- 400
A3
4
a
Stop condition
A2
b
5
Arbitration lost
Internal SDA output = “1”
A1
6
A0
7
R/W
8
ACK signal
9
TMPA901CM
2010-07-29