UPD78F1154GK-GAK-AX NEC, UPD78F1154GK-GAK-AX Datasheet - Page 19

• Manufacturer Part Number: UPD78F1154GK-GAK-AX
• Description: 16BIT MCU, 128K FLASH, 8K RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F1154GK-GAK-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 70
• Ram Memory Size: 8192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 9
• No. Of: RoHS Compliant
• Core Size: 16bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

5. SPECIAL FUNCTION REGISTERS (SFRs)
instructions. The manipulable bit units, 1, 8, and 16, depend on the SFR type.
Unlike a general-purpose register, each SFR has a special function.
SFRs are allocated to the FFF00H to FFFFFH area.
SFRs can be manipulated like general-purpose registers, using operation, transfer, and bit manipulation
Each manipulation bit unit can be specified as follows.
• 1-bit manipulation
• 8-bit manipulation
• 16-bit manipulation
Table 5-1 gives a list of the SFRs. The meanings of items in the table are as follows.
• Symbol
• R/W
• Manipulable bit units
• After reset
Remark For extended SFRs (2nd SFRs), see 6. EXTENDED SPECIAL FUNCTION REGISTERS (2nd SFRs:
Describe the symbol reserved by the assembler for the 1-bit manipulation instruction operand (sfr.bit). This
manipulation can also be specified with an address.
Describe the symbol reserved by the assembler for the 8-bit manipulation instruction operand (sfr).
manipulation can also be specified with an address.
Describe the symbol reserved by the assembler for the 16-bit manipulation instruction operand (sfrp). When
specifying an address, describe an even address.
Symbol indicating the address of a SFR. It is a reserved word in the RA78K0R, and is defined as an sfr variable
using the #pragma sfr directive in the CC78K0R. When using the RA78K0R, debugger, and simulator, symbols
can be written as an instruction operand.
Indicates whether the corresponding SFR can be read or written.
R/W: Read/write enable
R: Read only
W: Write only
“√” indicates the manipulable bit unit (1, 8, or 16). “−” indicates a bit unit for which manipulation is not possible.
Indicates each register status upon reset signal generation.
2nd Special Function Registers).
Preliminary Product Information U17892EJ2V0PM
78K0R/KF3
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