CHAPTER 3 CPU ARCHITECTURE
Preliminary User’s Manual U16898EJ1V0UD
35
Table 3-3. Special Function Registers (2/2)
Number of Bits Manipulated
Simultaneously
Address
Special Function Register (SFR) Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
After Reset
FF80H
A/D converter mode register
ADM
√
√
−
FF81H
Analog input channel specify register
ADS
√
√
−
FF84H
Port mode control register 2
PMC2
√
√
−
FF8CH
Input switching control register
ISC
√
√
−
00H
FF90H
Asynchronous serial interface operation mode
register 6
ASIM6
R/W
√
√
−
01H
FF92H
Reception buffer register 6
RXB6
−
√
−
FFH
FF93H Asynchronous
serial
interface reception error
status register 6
ASIS6
R
−
√
−
00H
FF94H
Transmission buffer register 6
TXB6
R/W
−
√
−
FFH
FF95H
Asynchronous serial interface transmission status
register 6
ASIF6 R
−
√
−
FF96H
Clock selection register 6
CKSR6
−
√
−
00H
FF97H
Baud rate generator control register 6
BRGC6
−
√
−
FFH
FF98H
Asynchronous serial interface control register 6
ASICL6
√
√
−
16H
FFCCH
8-bit timer mode control register 80
TMC80
R/W
√
√
−
00H
FFCDH
8-bit compare register 80
CR80
W
−
√
−
Undefined
FFCEH
8-bit timer counter 80
TM80
R
−
√
−
FFE0H
Interrupt request flag register 0
IF0
√
√
−
FFE1H
Interrupt request flag register 1
IF1
√
√
−
00H
FFE4H
Interrupt mask flag register 0
MK0
√
√
−
FFE5H
Interrupt mask flag register 1
MK1
√
√
−
FFH
FFECH
External interrupt mode register 0
INTM0
−
√
−
FFFDH
External interrupt mode register 1
INTM1
−
√
−
00H
FFF3H
Preprocessor clock control register
PPCC
√
√
−
02H
FFF4H
Oscillation stabilization time selection register
OSTS
−
√
−
Undefined
Note
FFFBH
Processor clock control register
PCC
R/W
√
√
−
02H
Note The oscillation stabilization time that elapses after release of reset is selected by the option byte. For
details, refer to CHAPTER 17 OPTION BYTE.
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