p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 389

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Synchronization
clock
Serial data
TDRE
TEND
Figure 15.16 Example of SCI Transmit Operation in Clocked Synchronous Mode
TXI interrupt request
generated
Data written to TDR and
TDRE flag cleared to 0 in
TXI interrupt handling
routine
Bit 0
Transfer direction
Bit 1
1 frame
Bit 7
TXI interrupt request
generated
Section 15 Serial Communication Interface (SCI)
Bit 0
Rev. 1.00 Sep. 21, 2006 Page 351 of 658
Bit 1
TEI interrupt request
generated
Bit 6
REJ09B0310-0100
Bit 7