Datasheet

Section 20 Synchronous Serial Communication Unit (SSU)
R01UH0309EJ0500 Rev. 5.00 Page 1121 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Table 20.5 Communication Modes and Pin States of SSCK Pin
Register Setting Pin State
Communication
Mode
SSUMS MSS SCKS SSCK
0 0 0 ⎯ SSU communication
mode
1 Input
1 0 ⎯
1 Output
1 0 0 ⎯ Clock synchronous
communication mode
1 Input
1 0 ⎯
1 Output
[Legend]
⎯: Not used as SSU pin
Table 20.6 Communication Modes and Pin States of SCS Pin
Register Setting Pin State
Communication
Mode
SSUMS MSS CSS1 CSS0 SCS
0 0 × × Input SSU communication
mode
1 0 0 ⎯
0 1 Input
1 0 Automatic
input/output
1 1 Output
Clock synchronous
communication mode
1 × × × ⎯
[Legend]
×: Don't care
⎯: Not used as SSU pin