r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 58

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

2. Programming Model
Table 2.1
Note:
The CPU register configuration in each processing mode is shown in figure 2.2.
User mode and privileged mode are switched by the processing mode bit (MD) in the status
register.
Rev.1.00 Jan. 10, 2008 Page 28 of 1658
REJ09B0261-0100
Type
General registers R0_BANK0 to R7_BANK0,
Control registers
System registers
Floating-point
registers
*
Initialized by a power-on reset and manual reset.
Initial Register Values
Registers
R0_BANK1 to R7_BANK1,
R8 to R15
SR
GBR, SSR, SPC, SGR, DBR Undefined
VBR
MACH, MACL, PR
PC
FR0 to FR15, XF0 to XF15,
FPUL
FPSCR
Initial Value*
Undefined
MD bit = 1, RB bit = 1, BL bit = 1, FD bit = 0,
IMASK = B'1111, reserved bits = 0,
others = undefined
H'00000000
Undefined
H'A0000000
Undefined
H'00040001