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CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16228EJ2V0UD
77
Table 3-6. Special Function Register List (4/4)
Manipulatable Bit Unit
Address
Special Function Register (SFR) Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
After
Reset
FFB7H
Prescaler mode register 01
Note 1
PRM01
R/W
√
√
00H
FFB8H
Capture/compare control register 01
Note 1
CRC01
R/W
√
√
00H
FFB9H
16-bit timer output control register 01
Note 1
TOC01
R/W
√
√
00H
FFBAH
16-bit timer mode control register 00
TMC00
R/W
√
√
00H
FFBBH
Prescaler mode register 00
PRM00
R/W
√
√
00H
FFBCH
Capture/compare control register 00
CRC00
R/W
√
√
00H
FFBDH
16-bit timer output control register 00
TOC00
R/W
√
√
00H
FFBEH
Low-voltage detection register
LVIM
R/W
√
√
00H
FFBFH
Low-voltage detection level selection register
LVIS
R/W
√
00H
FFE0H
Interrupt request flag register 0L
IF0
IF0L
R/W
√
√
00H
FFE1H
Interrupt request flag register 0H
IF0H
R/W
√
√
√
00H
FFE2H
Interrupt request flag register 1L
IF1
IF1L
R/W
√
√
00H
FFE3H
Interrupt request flag register 1H
IF1H
R/W
√
√
√
00H
FFE4H
Interrupt mask flag register 0L
MK0
MK0L R/W
√
√
FFH
FFE5H
Interrupt mask flag register 0H
MK0H R/W
√
√
√
FFH
FFE6H
Interrupt mask flag register 1L
MK1
MK1L R/W
√
√
FFH
FFE7H
Interrupt mask flag register 1H
MK1H R/W
√
√
√
DFH
FFE8H
Priority specification flag register 0L
PR0
PR0L
R/W
√
√
FFH
FFE9H
Priority specification flag register 0H
PR0H R/W
√
√
√
FFH
FFEAH
Priority specification flag register 1L
PR1
PR1L
R/W
√
√
FFH
FFEBH
Priority specification flag register 1H
PR1H R/W
√
√
√
FFH
FFF0H
Internal memory size switching register
Note 2
IMS
R/W
√
CFH
FFF4H
Internal expansion RAM size switching register
Note 2
IXS
R/W
√
0CH
FFFBH
Processor clock control register
PCC
R/W
√
√
00H
Notes 1.
μ
PD780133, 780134, 78F0134, 780136, 780138, and 78F0138 only.
2.
The default value of IMS and IXS are fixed (IMS = CFH, IXS = 0CH) in all products in the 78K0/KE1
regardless of the internal memory capacity.
Therefore, set the following value to each product.
IMS
IXS
μ
PD780131
42H
μ
PD780132
44H
μ
PD780133
C6H
μ
PD780134
C8H
0CH
μ
PD78F0134
Note
Value corresponding to mask ROM version
μ
PD780136
CCH
μ
PD780138
CFH
0AH
μ
PD78F0138
Value corresponding to mask ROM version
Note
The
μ
PD78F0134 does not support the
μ
PD780136 and 780138.