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| TMP86CM29BFG Datasheet, PDF (154/196 Pages) Toshiba Semiconductor – 8 Bit Microcontroller | |||
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12. Synchronous Serial Interface (SIO)
12.6 Transfer Mode
TMP86CM29BFG
Note:The buffer contents are lost when the transfer mode is switched. If it should become necessary to switch the
transfer mode, end receiving by clearing SIOCR1<SIOS> to â0â, read the last data and then switch the trans-
fer mode.
SIOCR1<SIOS>
Clear SIOS
SIOSR<SIOF>
SIOSR<SEF>
SCK pin
(output)
SO pin
SI pin
INTSIO interrupt
a0 a1 a2 a3 a4 a5 a6 a7
c0 c1 c2 c3 c4 c5 c6 c7
b0 b1 b2 b3 b4 b5 b6 b7
d0 d1 d2 d3 d4 d5 d6 d7
DBR
a
Write (a)
cb
Read out (c) Write (b)
d
Read out (d)
Figure 12-11 Transfer / Receive Mode (Example: 8bit, 1word transfer, Internal clock)
SCK pin
SIOSR<SIOF>
SO pin
Bit 6
Bit 7 of last word
tSODH = min 4/fc [s] ( In the NORMAL1/2, IDLE1/2 modes)
tSODH = min 4/fs [s] (In the SLOW1/2, SLEEP1/2 modes)
Figure 12-12 Transmitted Data Hold Time at End of Transfer / Receive
Page 140
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