BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 784

• 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

Figure 3.22.10 Example of Recommended Operation Flow when the Watermark Level is 32 Bytes and the
transfer is complete
Disable DMA channel
(CMSCR<CSRST>=1)
（CMSCV<DMAEN>=0)
(CMSCR<CSRST>=0)
（CMSCV<DMAEN>=1)
Wait until DMA bust
（DMACCｘConfiguration<E>=0)
DMASoftBReq[5]= 0 ?
Restart CMSI
Reset CMSI
Clear Interrupt
Read 24 bytes
CMSI is Reset during a DMA Burst Transfer (Transfer Width: 8 Bits, Burst Size: 32 Beats)
Write 32 bytes
Empty
16 bytes
24 bytes are read.
*The read and write pointers are cleared.
32 bytes are written.
16 bytes 16 bytes
TENTATIVE
TMPA900CM- 783
16 bytes 16 bytes
INTCMSF
Cleared
Request
DMA request
Cleared
Request
*The DMA request
is cleared upon
completion of the
DMA burst transfer.
*The DMA request has
been cleared when the
CMSI is restarted. So,
no problem occurs.
*The DMA request
is not cleared
because 32 bytes
have not been
transferred.
*The DMA request
is not cleared.
TMPA900CM
2009-10-14