Hardware manual

Microcomputer Technical Q&A
123
Q&A No.: QAH8S-241
Category: SCI
Subject: TDRE Flag Set Timing
Questions
When data transmission ends, the TDRE flag is set to 1 in the serial status register (SSR).
1. What is the timing for TDRE flag setting in asynchronous mode?
2. What is the timing for TDRE flag setting in synchronous mode?
Answers
See the next page.
Applicable Products
Applicability Series Applicability Series Applicability Series
Yes Entire H8S Series H8S/2655 H8S/2350
H8S/2355 H8S/2357 H8S/2345
H8S/2245 H8S/2148 H8S/2144
H8S/2138 H8S/2134 H8S/2128
H8S/2124 — — — —