TMPM330FWFG Toshiba, TMPM330FWFG Datasheet - Page 210
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TMPM330FWFG
Manufacturer Part Number
TMPM330FWFG
Description
Microcontrollers (MCU) MCU w/ ARM Cortex-M3 128K FLASH, 8K SRAM
Manufacturer
Toshiba
Specifications of TMPM330FWFG
Processor Series
TX03
Core
ARM Cortex M3
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Product Summaries
Summary
Lead Free
Yes
Rohs Compatible Product(s)
Available
Rom (kbytes)
128K
Rom Type
Flash
Ram (kbytes)
8K
Number Of Pins
100
Package
LQFP(14×14)
Vcc
3V
Cpu Mhz
40
Ssp (ch) Spi
-
I2c/sio (ch)
3
Uart/sio (ch)
3
Usb
-
Can
-
Ethernet
-
External Bus Interface
-
Cs/wait Controller (ch)
-
Dma Controller
-
10-bit Da Converter
-
10-bit Ad Converter
12
12-bit Ad Converter
-
16-bit Timer / Counter
10
Motor / Igbt Control
-
Real Time Clock
1
Watchdog Timer
Y
Osc Freq Detect
-
Clock Gear
Y
Low-power Hold Function
-
Remote Control Interface
Y
Hardware Cec Controller
Y
Comparators
-
Low-voltage Detector
-
Etm Hardware Trace
4-bit
Lead Free Status / Rohs Status
Details
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Company
Part Number
Manufacturer
Quantity
Price
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11 Serial Channel (SIO)
11.3.11 Transmit Buffer
The transmit buffer (SC0BUF) is in a dual structure. The double buffering function may be
enabled or disabled by setting the double buffer control bit <WBUF> in serial mode control
register 2 (SC0MOD2). If double buffering is enabled, data written to Transmit Buffer 2
(SCOBUF) is moved to Transmit Buffer 1 (shift register).
If the transmit FIFO has been disabled (SCOFCNF <CNFG> = 0 or 1 and SC0MOD1 <
FDPX1:0 >= 01), the INTTX0 interrupt is generated at the same time and the transmit
buffer empty flag <TBEMP> of SC0MOD2 is set to “1.” This flag indicates that Transmit
Buffer 2 is now empty and that the next transmit data can be written. When the next data is
written to Transmit Buffer 2, the <TBEMP> flag is cleared to “0.”
If the transmit FIFO has been enabled (SCNFCNF <CNFG> = 1 and SC0MOD1 < FDPX1:0
>= 10/11), any data in the transmit FIFO is moved to the Transmit Buffer 2 and <TBEMP>
flag is immediately cleared to “0.” The CPU writes data to Transmit Buffer 2 or to the
transmit FIFO.
If the transmit FIFO is disabled in the I/O interface SCLK input mode and if no data is set in
Transmit Buffer 2 before the next frame clock input, which occurs upon completion of data
transmission from Transmit Buffer 1, an under-run error occurs and a serial control register
(SC0CR) <PERR> parity/under-run flag is set.
If the transmit FIFO is enabled in the I/O interface SCLK input mode, when data
transmission from Transmit Buffer 1 is completed, the Transmit Buffer 2 data is moved to
Transmit Buffer 1 and any data in transmit FIFO is moved to Transmit Buffer 2 at the same
time.
If the transmit FIFO is disabled in the I/O interface SCLK output mode, when data in
Transmit Buffer 2 is moved to Transmit Buffer 1 and the data transmission is completed, the
SCLK output stops. So, no under-run errors can be generated.
If the transmit FIFO is enabled in the I/O interface SCLK output mode, the SCLK output
stops upon completion of data transmission from Transmit Buffer 1 if there is no valid data
in the transmit FIFO.
If double buffering is disabled, the CPU writes data only to Transmit Buffer 1 and the
transmit interrupt INTTX0 is generated upon completion of data transmission.
If handshaking with the other side is necessary, set the double buffer control bit <WBUF> to
“0” (disable) to disable Transmit Buffer 2; any setting for the transmit FIFO should not be
performed.
Note) In the I/O interface SCLK output mode, the SC0CR <PEER> flag is
insignificant. In this case, the operation is undefined. Therefore, to switch
from the SCLK output mode to another mode, SC0CR must be read in
advance to initialize the flag.
Under development
Page198
TMPM330
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