Jameco Electronics 3000 ユーザーズマニュアル
290
Rabbit 3000 Microprocessor
The stack protection registers are listed in Table B-12, Table B-13, and Table B-14.
Table B-12. Stack Limit Control Register
Stack Limit Control Register
(STKCR)
(Address = 0x0444)
Bit(s)
Value
Description
7:1
These bits are reserved and should be written with zeros.
0
0
Disable stack-limit checking.
1
Enable stack-limit checking.
Table B-13. Stack Low Limit Register
Stack Low Limit Register
(STKLLR)
(Address = 0x0445)
Bit(s)
Value
Description
7:0
Lower limit for stack limit checking. If a stack operation or stack-relative
memory access is attempted at an address less than {STKLLR, 0x10} a stack
limit violation interrupt is generated.
memory access is attempted at an address less than {STKLLR, 0x10} a stack
limit violation interrupt is generated.
Table B-14. Stack High Limit Register
Stack High Limit Register
(STKHLR)
(Address = 0x0446)
Bit(s)
Value
Description
7:0
Upper limit for stack limit checking. If a stack operation or stack-relative
memory access is attempted at an address greater than {STKHLR, 0x0EF} a
stack limit violation interrupt is generated.
memory access is attempted at an address greater than {STKHLR, 0x0EF} a
stack limit violation interrupt is generated.