r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 632

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 15 Synchronous Serial Communication Unit (SSU)
15.3.3
SSMR selects the MSB first/LSB first, clock polarity, clock phase, and clock rate of synchronous
serial communication.
Rev. 1.00 Sep. 21, 2007 Page 606 of 1124
REJ09B0402-0100
Bit
1, 0
Bit
7
6
5
Bit Name
DATS[1:0] 00
Bit Name
MLS
CPOS
CPHS
SS Mode Register (SSMR)
Initial
Value
Initial
Value
0
0
Initial value:
0
R/W:
Bit:
R/W
MLS
R/W
R/W
R/W
R/W
R/W
R/W
7
0
CPOS CPHS
R/W
6
0
Description
Transmit/Receive Data Length Select
Select serial data length.
00: 8 bits
01: 16 bits
10: 32 bits
11: Setting prohibited
Description
MSB First/LSB First Select
Selects that the serial data is transmitted in MSB first or
LSB first.
0: LSB first
1: MSB first
Clock Polarity Select
Selects the SSCK clock polarity.
0: High output in idle mode, and low output in active
1: Low output in idle mode, and high output in active
Clock Phase Select (Only for SSU Mode)
Selects the SSCK clock phase.
0: Data changes at the first edge.
1: Data is latched at the first edge.
R/W
5
0
mode
mode
R
4
0
-
R
3
0
-
R/W
2
0
CKS[2:0]
R/W
1
0
R/W
0
0