r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 645

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

15.4.4
The SSU switches the input/output pin (SSI, SSO, SSCK, and SCS) functions according to the
communication modes and register settings. The input/output directions of the pins should be
selected in the port I/O registers. The relationship of communication modes and input/output pin
functions are shown in tables 15.5 to 15.7.
Table 15.5 Communication Modes and Pin States of SSI and SSO Pins
[Legend]
:
Communication
Mode
SSU communication
mode
SSU (bidirectional)
communication mode
Clock synchronous
communication mode
Not used as SSU pin
Communication Modes and Pin Functions
SSUMS
0
0
1
BIDE
0
1
0
Register Setting
MSS
0
1
0
1
0
1
Section 15 Synchronous Serial Communication Unit (SSU)
TE
0
1
0
1
0
1
0
1
0
1
0
1
Rev. 1.00 Sep. 21, 2007 Page 619 of 1124
RE
1
0
1
1
0
1
1
0
1
0
1
0
1
1
0
1








SSI
Output
Output
Input
Input
Input
Input
Input
Input
REJ09B0402-0100
Pin State
SSO
Input

Input

Output
Output
Input
Output
Input
Output

Output
Output

Output
Output