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80
CHAPTER 5 CPU ARCHITECTURE
User
’
s Manual U14260EJ3V1UD
Table 5-3. Special Function Register List (3/3)
Address
Special Function Register (SFR) Name
Symbol
R/W
Manipulatable Bit Unit
After Reset
1 Bit
8 Bits 16 Bits
FF94H
Asynchronous serial interface status register 2
ASIS2
R
—
√
—
00H
FF95H
Asynchronous serial interface transmit status register 2
ASIF2
—
√
—
FFA0H
Asynchronous serial interface mode register 0
ASIM0
R/W
√
√
—
FFA1H
Asynchronous serial interface status register 0
ASIS0
R
—
√
—
FFA2H
Baud rate generator control register 0
BRGC0
R/W
—
√
—
FFA8H
IIC control register 0
Note 1
IICC0
√
√
—
FFA9H
IIC status register 0
Note 1
IICS0
R
√
√
—
FFAAH
IIC transfer clock select register 0
Note 1
IICCL0
R/W
√
√
—
FFABH
Slave address register 0
Note 1
SVA0
—
√
—
FFB0H
Serial operation mode register 1
CSIM1
√
√
—
FFB1H
Serial clock select register 1
CSIC1
√
√
—
10H
FFB8H
Serial operation mode register 3
CSIM3
√
√
—
00H
FFE0H
Interrupt request flag register 0L
IF0
IF0L
√
√
√
FFE1H
Interrupt request flag register 0H
IF0H
√
√
FFE2H
Interrupt request flag register 1L
IF1L
√
√
—
FFE4H
Interrupt mask flag register 0L
MK0
MK0L
√
√
√
FFH
FFE5H
Interrupt mask flag register 0H
MK0H
√
√
FFE6H
Interrupt mask flag register 1L
MK1L
√
√
—
FFE8H
Priority level specification flag register 0L
PR0
PR0L
√
√
√
FFE9H
Priority level specification flag register 0H
PR0H
√
√
FFEAH
Priority level specification flag register 1L
PR1L
√
√
—
FFF0H
Memory size switching register
IMS
—
√
—
CFH
Note 2
FFF4H
Internal expansion RAM size switching register
IXS
—
√
—
0CH
Note 3
FFF8H
Memory expansion wait setting register
MM
√
√
—
10H
FFF9H
Watchdog timer mode register
WDTM
√
√
—
00H
FFFAH
Oscillation stabilization time select register
OSTS
—
√
—
04H
FFFBH
Processor clock control register
PCC
√
√
—
Notes 1.
μ
PD780078Y Subseries only
2.
Although the default value of this register is CFH, set the value corresponding to each product as
indicated below.
μ
PD780076, 780076Y:
CCH
μ
PD780078, 780078Y:
CFH
μ
PD78F0078, 78F0078Y: Value for mask ROM version
3.
Although the default value of this register is 0CH, initialize this register to 0AH.