UPD78F1154GK-GAK-AX NEC, UPD78F1154GK-GAK-AX Datasheet - Page 25

• 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

6. EXTENDED SPECIAL FUNCTION REGISTERS (2nd SFRs: 2nd Special Function Registers)
FFFFFH) are allocated to this area. An instruction that accesses the extended SFR area, however, is 1 byte longer
than an instruction that accesses the SFR area.
instructions. The manipulable bit units, 1, 8, and 16, depend on the SFR type.
Unlike a general-purpose register, each extended SFR (2nd SFR) has a special function.
Extended SFRs are allocated to the F0000H to F07FFH area. SFRs other than those in the SFR area (FFF00H to
Extended 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 6-1 gives a list of the extended SFRs (2nd SFRs). The meanings of items in the table are as follows.
• Symbol
• R/W
• Manipulable bit units
• After reset
Remark For SFRs in the SFR area, see 5. SPECIAL FUNCTION REGISTERS (SFRs).
Describe the symbol reserved by the assembler for the 1-bit manipulation instruction operand (!addr16.bit). This
manipulation can also be specified with an address.
Describe the symbol reserved by the assembler for the 8-bit manipulation instruction operand (!addr16). This
manipulation can also be specified with an address.
Describe the symbol reserved by the assembler for the 16-bit manipulation instruction operand (!addr16). When
specifying an address, describe an even address.
Symbol indicating the address of an extended 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 extended SFR can be read or written.
R/W: Read/write enable
R:
W:
“√” 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.
Read only
Write only
Preliminary Product Information U17892EJ2V0PM
78K0R/KF3
25