NEC 78K0 Series User Manual page 75

Address Special Function Register (SFR) Name
FF70H Asynchronous serial interface operation mode
register 0
FF71H Baud rate generator control register 0
FF72H Receive buffer register 0
FF73H Asynchronous serial interface reception error
status register 0
FF74H Transmit shift register 0
FF80H Serial operation mode register 10
FF81H Serial clock selection register 10
FF84H Transmit buffer register 10
FF88H Serial operation mode register 11
FF89H Serial clock selection register 11
FF8CH Timer clock selection register 51
FF99H Watchdog timer enable register
FF9FH Clock operation mode select register
FFA0H Internal oscillation mode register
FFA1H Main clock mode register
FFA2H Main OSC control register
FFA3H Oscillation stabilization time counter status register OSTC
FFA4H Oscillation stabilization time select register
FFA5H IIC shift register 0
FFA6H IIC control register 0
FFA7H Slave address register 0
FFA8H IIC clock selection register 0
FFA9H IIC function expansion register 0
FFAAH IIC status register 0
FFABH IIC flag register 0
FFACH Reset control flag register
FFB0H 16-bit timer counter 01
FFB1H
FFB2H 16-bit timer capture/compare register 001
FFB3H
FFB4H 16-bit timer capture/compare register 011
FFB5H
FFB6H 16-bit timer mode control register 01
FFB7H Prescaler mode register 01
FFB8H Capture/compare control register 01
FFB9H 16-bit timer output control register 01
FFBAH 16-bit timer mode control register 00
Notes 1. Available only in the
2. The reset value of WDTE is determined by setting of option byte.
3. The value of this register is 00H immediately after a reset release but automatically changes to 80H after
internal high-speed oscillator has been stabilized.
4. The reset value of RESF varies depending on the reset source.
CHAPTER 3 CPU ARCHITECTURE
Table 3-6. Special Function Register List (3/4)
ASIM0
BRGC0
RXB0
ASIS0
TXS0
CSIM10
CSIC10
SOTB10
Note 1
CSIM11
Note 1
CSIC11
TCL51
WDTE
OSCCTL
RCM
MCM
MOC
OSTS
IIC0
IICC0
SVA0
IICCL0
IICX0
IICS0
IICF0
RESF
Note 1
TM01
Note 1
CR001
Note 1
CR011
Note 1
TMC01
Note 1
PRM01
Note 1
CRC01
Note 1
TOC01
TMC00
µ
PD78F0534, 78F0535, 78F0536, 78F0537, and 78F0537D.
Preliminary User's Manual U17260EJ3V1UD
Symbol R/W Manipulatable Bit Unit
1 Bit
√
R/W
−
R/W
−
R
−
R
−
W
√
R/W
√
R/W
−
R/W
√
R/W
√
R/W
√
R/W
−
R/W
√
R/W
√
R/W
√
R/W
√
R/W
√
R
−
R/W
−
R/W
√
R/W
−
R/W
√
R/W
√
R/W
√
R
√
R/W
−
R
−
R
−
R/W
−
R/W
√
R/W
√
R/W
√
R/W
√
R/W
√
R/W
After
Reset
8 Bits 16 Bits
√ −
01H
√ −
1FH
√ −
FFH
√ −
00H
√ −
FFH
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
Note 2
√ −
1AH/9AH
√ −
00H
√ −
Note 3
80H
√ −
00H
√ −
80H
√ −
00H
√ −
05H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
Note 4
00H
− √
0000H
− √
0000H
− √
0000H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
√ −
00H
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