SH7708 Datasheet, PDF (418/633 Pages) Renesas Technology Corp – SuperH™ RISC engine

14.1.2 Block Diagram
Figure 14.1 shows a block diagram of the smart card interface.
Module data bus
RxD
TxD
SCK
SCRDR
SCRSR
SCTDR
SCSCMR
SCSSR
SCBRR
SCTSR
SCSCR
SCSMR
SCSPTR
Transmit/
receive
control
Baud rate
generator
Parity generation
Clock
Parity check
External clock
SCI
SCSCMR: Smart card mode register
SCRSR: Receive data register
SCRDR: Receive data register
SCTSR: Transmit shift register
SCTDR: Transmit data register
SCSMR: Serial mode register
SCSCR: Serial control register
SCSSR: Serial status register
SCBRR: Bit rate register
SCSPTR: Serial port register
Figure 14.1 Smart Card Interface Block Diagram
Internal
data bus
Pφ
Pφ/4
Pφ/16
Pφ/64
TXI
RXI
ERI
400