ST STM32H7 Series User Manual

PM0214 Rev 9 255/262
PM0214 Core peripherals
261
4.6.3 Floating-point context address register (FPCAR)
Address offset: 0x08
Reset value: 0x0000000
Required privilege: Privileged
The FPCAR register holds the location of the unpopulated floating-point register space
allocated on an exception stack frame.
4.6.4 Floating-point status control register (FPSCR)
Address offset: Not mapped
Reset value: 0x0000000
Required privilege: Privileged
The FPSCR register provides all necessary user level control of the floating-point system.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
ADDRESS[31:16]
rw
1514131211109876543210
ADDRESS[15:3]
Reserved
rw
Bits 31:3 ADDRESS: Location of unpopulated floating-point register space allocated on an exception
stack frame.
Bits 2:0 Reserved. Read as Zero, Writes Ignored.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
NZCV
Reserv
ed
AHP DN FZ RMode
Reserved
rw rw rw rw rw rw rw rw rw
1514131211109876543210
Reserved
IDC
Reserved
IXC UFC OFC DZC IOC
rw rw rw rw rw rw
Bit 31 N: Negative condition code flag. Floating-point comparison operations update these flags. For
more details on the result, refer to Table 57.
0: Operation result was positive, zero, greater than, or equal.
1: Operation result was negative or less than.
Bit 30 Z: Zero condition code flag. Floating-point comparison operations update these flags. For more
details on the result, refer to Table 57.
0: Operation result was not zero.
1: Operation result was zero.
Bit 29 C: Carry condition code flag. Floating-point comparison operations update these flags. For more
details on the result, refer to Table 57.
0: Add operation did not result in a carry bit or subtract operation resulted in a borrow bit.
1: Add operation resulted in a carry bit or subtract operation did not result in a borrow bit.

ST STM32H7 Series Specifications

General

Brand	ST
Model	STM32H7 Series
Category	Computer Hardware
Language	English