UPD78F1502AGK-GAK-AX Datasheet, PDF (496/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 14 SERIAL ARRAY UNIT
(4) Processing flow (in continuous transmission mode)
Figure 14-30. Timing Chart of Master Transmission (in Continuous Transmission Mode)
SSmn
STmn
SEmn
SDRmn
SCKp pin
SOp pin
Shift
register mn
INTCSIp
MDmn0
TSFmn
BFFmn
Transmit data 1 Transmit data 2
Transmit data 3
Transmit data 1
Shift operation
Transmit data 2
Shift operation
Transmit data 3
Shift operation
Data transmission (8-bit length) _{Data transmission (8-bit length)} Data transmission (8-bit length)
<1> <2> <3> <2>
(Note)
<3> <2>
<3>
<4>
<5> <6>
Note When transmit data is written to the SDRmn register while BFFmn = 1, the transmit data is overwritten.
Caution The MDmn0 bit can be rewritten even during operation.
However, rewrite it before transfer of the last bit is started, so that it will be rewritten before the
transfer end interrupt of the last transmit data.
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0 to 2), p: CSI number (p = 00, 01, 10, 20)
R01UH0004EJ0501 Rev.5.01
480
Jun 20, 2011