r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 546

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r5f21346mnfp

Manufacturer Part Number
r5f21346mnfp
Description
Single-chip Mcus Incorporates The R8c Cpu Core
Manufacturer
Renesas Electronics Corporation.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
r5f21346mnfp#V0
Manufacturer:
Renesas Electronics America
Quantity:
10 000
R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 25.6
Note:
1. Write 0 after reading 1 to set the TEND bit to 0.
(1)
(2)
(3)
SSSR register
SSER register
Sample Flowchart of Data Transmission (Clock Synchronous Communication Mode)
Write transmit data to SSTDR register
Read TDRE bit in SSSR register
Read TEND bit in SSSR register
transmission
Initialization
TDRE = 1 ?
TEND = 1 ?
continues?
Start
Data
End
TEND bit ← 0
TE bit ← 0
Yes
No
Yes
No
Yes
(1)
No
25. Synchronous Serial Communication Unit (SSU)
(2) Determine whether data transmission continues.
(3) When data transmission is completed, the TEND
(1) After reading the SSSR register and confirming
that the TDRE bit is set to 1, write the transmit
data to the SSTDR register. When the transmit
data is written to the SSTDR register, the TDRE
bit is automatically set to 0.
bit is set to 1. Set the TEND bit to 0 and the TE bit
to 0 and complete transmit mode.
Page 514 of 740

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