Exceptions - STMicroelectronics SPC572L series Reference Manual

Core e200z215An3 description
Table 93. EFPU Status and Control Register field descriptions(Continued)
Bits Name
25
FINXE
(57)
26
FINVE
(58)
27
FDBZE
(59)
28
FUNFE
(60)
29
FOVFE
(61)
30:31
FRMC
(62:63)
12.6

Exceptions

Interrupts implemented in e200z215An3 and the exception conditions that cause them are
listed in Table
266/2058
Embedded Floating-point Inexact Exception Enable
If the exception is enabled, a Floating-point Round exception is taken if the result of a
Floating-point instruction does not result in overflow or underflow, and the result is inexact
(FG | FX = 1), or if the result of a Floating-point instruction does result in overflow
(FOVF = 1) but Floating-point Overflow exceptions are disabled (FOVFE = 0), or if the
result of a Floating-point instruction results in underflow (FUNF = 1 or FUNFH = 1) but
Floating-point Underflow exceptions are disabled (FUNFE = 0), and no Floating-point Data
exception occurs.
0 Exception disabled
1 Exception enabled
Embedded Floating-point Invalid Operation / Input Error Exception Enable
If the exception is enabled, a Floating-point Data exception is taken if the FINV bit is set by
a floating-point instruction.
0 Exception disabled
1 Exception enabled
Embedded Floating-point Divide by Zero Exception Enable
If the exception is enabled, a Floating-point Data exception is taken if the FDBZ bit is set
by a floating-point instruction.
0 Exception disabled
1 Exception enabled
Embedded Floating-point Underflow Exception Enable
If the exception is enabled, a Floating-point Data exception is taken if the FUNF bit is set
by a floating-point instruction.
0 Exception disabled
1 Exception enabled
Embedded Floating-point Overflow Exception Enable
If the exception is enabled, a Floating-point Data exception is taken if the FOVF bit is set
by a floating-point instruction.
0 Exception disabled
1 Exception enabled
Embedded Floating-point Rounding Mode Control
00 Round to Nearest
01 Round toward Zero
10 Round toward +Infinity
11 Round toward –Infinity
94.
DocID027809 Rev 4
Description
RM0400