UPD78F1502AGK-GAK-AX Datasheet, PDF (100/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 3 CPU ARCHITECTURE
3.1.4 Special function register (SFR) area
On-chip peripheral hardware special function registers (SFRs) are allocated in the area FFF00H to FFFFFH.
Caution Do not access addresses to which SFRs are not assigned.
3.1.5 Extended special function register (2nd SFR: 2nd Special Function Register) area
On-chip peripheral hardware special function registers (2nd SFRs) are allocated in the area F0000H to F07FFH.
SFRs other than those in the SFR area (FFF00H to FFFFFH) are allocated to this area. An instruction that accesses
the 2nd SFR area, however, is 1 byte longer than an instruction that accesses the SFR area.
Caution Do not access addresses to which 2nd SFRs are not assigned.
R01UH0004EJ0501 Rev.5.01
84
Jun 20, 2011