Datasheet

Rev.7.00 Dec. 24, 2008 Page xiii of liv
REJ09B0074-0700
Item Page Revision (See Manual for Details)
12.3.7 Serial Status
Register (SSR)
• Normal Serial
Communication
Interface Mode
(When SMIF in
SCMR is 0)
377 to
379
Note added
Bit Bit Name
Initial
Value R/W Description
7 TDRE 1 R/(W)*
1
Transmit Data Register Empty
……
[Clearing conditions]
• When 0 is written to TDRE after reading TDRE = 1*
2
……
6 RDRF 0 R/(W)*
1
Receive Data Register Full
……
[Clearing conditions]
• When 0 is written to RDRF after reading RDRF = 1*
2
……
5 ORER 0 R/(W)*
1
Overrun Error
……
[Clearing condition]
• When 0 is written to ORER after reading ORER = 1*
2
……
4 FER 0 R/(W)*
1
Framing Error
……
[Clearing condition]
• When 0 is written to FER after reading FER = 1*
2
……
3 PER 0 R/(W)*
1
Parity Error
……
[Clearing condition]
• When 0 is written to PER after reading PER = 1*
2
……
Note: 1. The write value should always be 0 to clear the flag.
2. To clear the flag by the CPU on the HD6432210S,
reread the flag after writing 0 to it.
• Smart Card Interface
Mode (When SMIF in
SCMR is 1)
380 to
383
Note added
Bit Bit Name
Initial
Value
R/W Description
7 TDRE 1 R/(W)*
1
Transmit Data Register Empty
……
[Clearing conditions]
• When 0 is written to TDRE after reading TDRE = 1*
2
……
6 RDRF 0 R/(W)*
1
Receive Data Register Full
……
[Clearing conditions]
• When 0 is written to RDRF after reading RDRF = 1*
2
……
5 ORER 0 R/(W)*
1
Overrun Error
……
[Clearing condition]
• When 0 is written to ORER after reading ORER = 1*
2
……
4 ERS 0 R/(W)*
1
Error Signal Status
……
[Clearing condition]
• When 0 is written to ERS after reading ERS = 1*
2
……
3 PER 0 R/(W)*
1
Parity Error
……
[Clearing condition]
• When 0 is written to PER after reading PER = 1*
2
……
Note: 1. The write value should always be 0 to clear the flag.
2. To clear the flag by the CPU on the HD6432210S,
reread the flag after writing 0 to it.