R01UH0823EJ0100 Rev.1.00
Page 75 of 1823
Jul 31, 2019
RX23W Group
2. CPU
2.2.2.7
Backup PSW (BPSW)
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.
2.2.2.8
Fast Interrupt Vector Register (FINTV)
The fast interrupt vector register (FINTV) is provided to speed up response to interrupts.
The FINTV register specifies a branch destination address when a fast interrupt has been generated.
b31
b0
Value after reset:
Undefined
b31
b0
Value after reset:
Undefined