TMPM382FSFG Toshiba, TMPM382FSFG Datasheet - Page 415

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TMPM382FSFG

Manufacturer Part Number
TMPM382FSFG
Description
Manufacturer
Toshiba
Datasheet

Specifications of TMPM382FSFG

Product Summaries
Summary
Lead Free
Yes
Rohs Compatible Product(s)
Available
Rom (kbytes)
64K
Rom Type
Flash
Ram (kbytes)
8K
Number Of Pins
64
Package
QFP(14x14)
Vcc
5V
Cpu Mhz
40
Ssp (ch) Spi
1
I2c/sio (ch)
1
Uart/sio (ch)
3
Usb
-
Can
-
Ethernet
-
External Bus Interface
N
Cs/wait Controller (ch)
-
Dma Controller
2
10-bit Da Converter
-
10-bit Ad Converter
-
12-bit Ad Converter
10
16-bit Timer / Counter
6
Motor / Igbt Control
Y
Real Time Clock
1
Watchdog Timer
Y
Osc Freq Detect
Y
Clock Gear
Y
Low-power Hold Function
-
Remote Control Interface
Y
Hardware Cec Controller
-
Comparators
-
Low-voltage Detector
Y
Etm Hardware Trace
2-bit
14 SSP (Synchronous Serial Port)
TMPM380/M382
(5) DMA interface
The DMA operation of the SSP is controlled through the DMA control register, SP0DMACR.
When there are more data than the watermark level (half of the FIFO) in the receive FIFO, the
receive DMA request is asserted.
When the amount of data left in the receive FIFO is less than the watermark level (half of the
FIFO), the transmit DMA request is asserted.
To clear the transmit/receive DMA request, an input pin for the transmit/receive DMA request
clear signals, which are asserted by the DMA controller, is provided.
Set the DMA burst length to four words.
* For the remaining three characters, the SSP does not assert the burst request.
Each request signal remains asserted until the relevant DMA clear signal is asserted. After the
request clear signal is deasserted, a request signal can become active again, depending on the
conditions described above. All request signals are deasserted if the SSP is disabled or the DMA
enable signal is cleared.
The following table shows the trigger points for DMABREQ, for both the transmit and receive
FIFOs.
Burst length
Watermark level
Transmit (number of empty
Receive (number of filled
locations)
locations)
1/2
4
4
TMPM380/M382 - 14 / 28 -

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