HD6432633 Datasheet, PDF (822/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

17.1.2 Block Diagram
Figure 17-1 shows a block diagram of the Smart Card interface.
Module data bus
RxD
TxD
SCK
RDR
RSR
TDR
SCMR
BRR
SSR
TSR
SCR
SMR
Transmission/
reception control
Baud rate
generator
Parity generation
Clock
Parity check
Legend
SCMR : Smart Card mode register
RSR : Receive shift register
RDR : Receive data register
TSR : Transmit shift register
TDR : Transmit data register
SMR : Serial mode register
SCR : Serial control register
SSR : Serial status register
BRR : Bit rate register
ø
ø/4
ø/16
ø/64
TXI
RXI
ERI
Figure 17-1 Block Diagram of Smart Card Interface
Internal
data bus
768