MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 265

• Manufacturer Part Number: MPC8544COMEDEV
• Description: KIT DEV EXPRESS MPC8544COM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8544COMEDEV

• Contents: Board
• For Use With/related Products: MPC8544
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.14.1
Freescale Semiconductor
Reset
62–63
32–63
0–31
Bits
Bits
58
59
60
61
W
R
0
FDBZE Embedded floating-point divide-by-zero exception enable
FUNFE Embedded floating-point underflow exception enable
FOVFE Embedded floating-point overflow exception enable
FINVE
FRMC
Name
Upper word
Lower word
Name
Accumulator (ACC)
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
0 Exception disabled
1 Exception enabled
If the exception is enabled, a floating-point data exception is taken if FINV or FINVH is set by a floating-point
instruction.
0 Exception disabled
1 Exception enabled
If the exception is enabled, a floating-point data exception is taken if FDBZ or FDBZH is set by a
floating-point instruction.
0 Exception disabled
1 Exception enabled
If the exception is enabled, a floating-point data exception is taken if FUNF or FUNFH is set by a
floating-point instruction.
0 Exception disabled
1 Exception enabled
If the exception is enabled, a floating-point data exception is taken if FOVF or FOVFH is set by a
floating-point instruction.
00 Round to nearest
01 Round toward zero
10 Round toward +infinity
11 Round toward –infinity
Embedded floating-point invalid operation/input error exception enable
Embedded floating-point rounding mode control
Holds the upper-word accumulate value for SPE multiply with accumulate instructions
Holds the lower-word accumulate value for SPE multiply with accumulate instructions
Upper word
Table 6-39. SPEFSCR Field Descriptions (continued)
Table 6-40. ACC FIeld Descriptions
Figure 6-57. Accumulator (ACC)
All zeros
31 32
Function
Function
Lower word
Access: User read/write
Core Register Summary
6-47
63