RL78/G1P
CHAPTER 11 SERIAL ARRAY UNIT
R01UH0895EJ0100 Rev.1.00
375
Nov 29, 2019
(4) Processing flow (in continuous transmission mode)
Figure 11-54. Timing Chart of Slave Transmission (in Continuous Transmission Mode)
(Type 1: DAPmn = 0, CKPmn = 0)
<1>
<2>
<2>
<2>
<3>
<3>
<3>
<5>
<6>
<4>
Note
SSmn
SEmn
SDRmn
SCKp pin
SOp pin
Shift register mn
INTCSIp
TSFmn
BFFmn
MDmn0
STmn
Transmit data 3
Transmit data 2
Transmit data 1
Transmit data 2
Transmit data 1
Transmit data 3
Shift operation
Shift operation
Shift operation
Data transmission
Data transmission
Data transmission
Note
If transmit data is written to the SDRmn register while the BFFmn bit of serial status register mn (SSRmn) is
1 (valid data is stored in serial data register mn (SDRmn)), the transmit data is overwritten.
Caution The MDmn0 bit of serial mode register mn (SMRmn) can be rewritten even during operation.
However, rewrite it before transfer of the last bit is started.
Remark
m: Unit number (m = 0), n: Channel number (n = 0), p: CSI number (p = 00), mn = 00