RX610 Group
2. CPU
R01UH0032EJ0120 Rev.1.20
Page 60 of 1006
Feb 20, 2013
2.2.2.5
Backup PC (BPC)
b31
b0
Value after reset: Undefined
The backup PC (BPC) is provided to speed up response to interrupts.
After a fast interrupt has been generated, the contents of the program counter (PC) are saved in the BPC.
2.2.2.6
Backup PSW (BPSW)
b31
b0
Value after reset: Undefined
The backup PSW (BPSW) is provided to speed up response to interrupts.
After a fast interrupt has been generated, the contents of the processor status word (PSW) are saved in the BPSW. The
allocation of bits in the BPSW corresponds to that in the PSW.
2.2.2.7
Fast Interrupt Vector Register (FINTV)
b31
b0
Value after reset: Undefined
The fast interrupt vector register (FINTV) is provided to speed up response to interrupts.
The FINTV specifies a branch destination address when a fast interrupt has been generated.