h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 486

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 Synchronous Serial Communication Unit (SSU)
16.4.5
Pin Control and Conflict Error
S C S
When bits CSS1 and CSS0 in SSCRH are specified to B'10, the
pin functions as an input
S C S
(Hi-Z) to detect conflict error. The conflict detection period starts when setting the MSS bit in
SSCRH to 1 and ends when starting serial transfer. When a low level signal is input to the
pin
S C S
within the period, a conflict error occurs. At this time, the CE bit in SSSR is set to 1 and the MSS
bit is cleared to 0.
Note: While the CE bit is set to 1, transmission or reception is not resumed. Clear the CE bit to 0
before resuming the transmission or reception.
External input to SCS
Internal-clocked SCS
MSS
Transfer enabled
internal signal
Data written
CE
to SSTDR
(Hi-Z)
SCS output
Conflict error
Worst time for
internally clocking SCS
detection period
Figure 16.10 Conflict Error Detection Timing (Before Transfer Start)
Rev. 3.00 Oct 04, 2005 page 446 of 598
REJ09B0155-0300