Filter
Top Products
RL78/G1A CHAPTER 12 SERIAL ARRAY UNIT
R01UH0305EJ0200 Rev.2.00 472
Jul 04, 2013
Figure 12-51. Procedure for Resuming Slave Transmission
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3), p: CSI number (p = 00, 01, 10, 11, 20, 21),
mn = 00 to 03, 10, 11
Starting setting for resumption
Port manipulation
Changing setting of the SPSm register
Changing setting of the SMRmn register
Changing setting of the SOm register
Port manipulation
Writing to the SSm register
Disable data output of the target channel
by setting a port register and a port
mode register.
Re-set the register to change the operation
clock setting.
Re-set the register to change serial
mode register mn (SMRmn) setting.
Set the initial output level of the serial
data
(
SOmn
)
.
Enable data output of the target channel
by setting a port register and a port mode
register.
Set the SSmn bit of the target channel to 1
(SEmn = 1: to enable operation).
Sets transmit data to the SIOp register (bits
7 to 0 of the SDRmn register) and wait for a
clock from the master.
(Selective)
(Selective)
(Selective)
(Essential)
(
Essential
)
(Essential)
(Essential)
Re-set the register to change serial
communication operation setting register
mn (SCRmn) setting.
(
Selective
)
Changing setting of the SCRmn register
If the OVF flag remain set, clear this
using serial flag clear trigger register mn
(SIRmn).
(Selective)
Clearing error flag
Set the SOEmn bit to 1 and enable
output from the target channel.
(Essential)
Changing setting of the SOEm register
Completing resumption setting
Starting communication
Set the SOEmn bit to 0 to stop output
from the target channel.
(Selective)
Changing setting of the SOEm register
(Essential)
Ye s
No
Wait until stop the communication target
(master)
Completing master
p
re
p
arations?
Changing setting of the SDRmn register
Re-set the register to change the transfer
baud rate setting (setting the transfer clock
by dividing the operation clock (f
MCK)).
(Selective)
<R>