Datasheet

Table Of Contents
Section 13 Serial Communication Interface
REJ09B0140-0900 Rev. 9.00 Page 383 of 846
Sep 16, 2010
H8S/2215 Group
13.1.1 Block Diagram
Figure 13.1 shows the block diagram of the SCI_0 for H8S/2215, figure 13.2 shows the block
diagram of the SCI_0 for H8S/2215R, H8S/2215T and H8S/2215C. Figure 13.2 shows the block
diagram of the SCI_1 and SCI_2.
RxD0
TxD0
PG1/IRQ7
C/A
CKE1
SSE
SCK0
Clock
External clock
TEI
TXI
RXI
ERI
RSR:
RDR:
TSR:
TDR:
SMR:
Receive shift register
Receive data register
Transmit shift register
Transmit data register
Serial mode register
SCR:
SSR:
SCMR:
BRR:
SEMR:
Serial control register
Serial status register
Smart card mode register
Bit rate register
Serial Extended mode register
SCMR
SSR
SCR
SMR
SEMR
control
transmission
and reception
Baud rate
generator
Average transfer
rate generator
10.667 MHz
· 115.152 kbps
· 460.606 kbps
16 MHz
· 115.196 kbps
· 460.784 kbps
· 720 kbps
BRR
TPU
TIOCA1
TCLKA
TIOCA2
Module data bus
RDR
TSRRSR
Detecting parity
Legend:
TDR
Parity
check
Internal data bus
Bus interface
φ
φ/4
φ/16
φ/64
Figure 13.1 Block Diagram of SCI_0 (H8S/2215)