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(2) Register bank select register (RBS)
The register bank select register specifies a register bank to be used as general-purpose registers. It can
select bank 0 to 3.
RBS is set by the SEL RBn instruction (n = 0-3).
When the RESET signal is asserted, RBS is initialized to "0".
RBE
0
1
CHAPTER 4 INTERNAL CPU FUNCTION
Table 4-7. RBE, RBS, and Register Bank Selected
RBS
3
2
1
×
0
0
0
0
0
0
1
1
Fixed to 0
× = don't care
User's Manual U10676EJ3V0UM
Register Bank
0
×
Fixed to bank 0
0
Selects bank 0
1
Selects bank 1
0
Selects bank 2
1
Selects bank 3
79
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