R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 566

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 14 Synchronous Serial Communication Unit (SSU)
14.4.4
The SSU switches the input/output pin (SSI, SSO, SSCK, and SCS) functions according to the
communication modes and register settings. When a pin is used as an input pin, set the
corresponding bit in the input buffer control register (ICR) to 1. The relationship of
communication modes and input/output pin functions are shown in tables 14.2 to 14.4.
Table 14.4 Communication Modes and Pin States of SSI and SSO Pins
[Legend]
: Not used as SSU pin (can be used as I/O port)
Rev. 3.00 Mar. 14, 2006 Page 528 of 804
REJ09B0104-0300
Communication
Mode
SSU communication
mode
SSU (bidirectional)
communication mode
Clock synchronous
communication mode
Communication Modes and Pin Functions
SSUMS
0
0
1
BIDE
0
1
0
Register Setting
MSS
0
1
0
1
0
1
TE
0
1
0
1
0
1
0
1
0
1
0
1
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
Pin State
SSO
Input

Input

Output
Output
Input
Output
Input
Output

Output
Output

Output
Output