HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 511

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Bit 2—Smart Card Data Inverter (SINV): Inverts data logic levels. This function is used in
combination with bit 3 to communicate with inverse-convention cards. SINV does not affect the
logic level of the parity bit. For parity settings, see section 14.3.4, Register Settings.
Bit 2
SINV
0
1
Bit 1—Reserved: Read-only bit, always read as 1.
Bit 0—Smart Card Interface Mode Select (SMIF): Enables the smart card interface function.
Bit 0
SMIF
0
1
14.2.2 Serial Status Register (SSR)
The function of SSR bit 4 is modified in the smart card interface. This change also causes a
modification to the setting conditions for bit 2 (TEND).
Bit
Initial value
Read/Write
Note: * Only 0 can be written, to clear the flag.
Description
Unmodified TDR contents are transmitted
Received data is stored unmodified in RDR
Inverted TDR contents are transmitted
Received data is inverted before storage in RDR
Description
Smart card interface function is disabled
Smart card interface function is enabled
R/(W)*
TDRE
7
1
R/(W)*
RDRF
6
0
R/(W)*
ORER
Error signal status (ERS)
Status flag indicating that an
error signal has been received
5
0
R/(W)*
501
ERS
0
4
R/(W)*
PER
3
0
Transmit end
Status flag indicating
end of transmission
TEND
R
2
1
MPB
R
1
0
(Initial value)
(Initial value)
MPBT
R/W
0
0