HD6433044 Datasheet, PDF (508/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

14.1.2 Block Diagram
Figure 14-1 shows a block diagram of the smart card interface.
Module data bus
RxD₀
TxD₀
SCK₀
RDR
RSR
TDR
TSR
SCMR
SSR
SCR
SMR
BRR
Transmit/receive
control
Baud rate
generator
Parity generate
Parity check
Clock
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 14-1 Smart Card Interface Block Diagram
Internal
data
bus
498