DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 132

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 3 Floating-Point Unit (FPU)
3.3.2
FPSCR is a 32-bit register that controls floating-point instructions, sets FPU exceptions, and
selects the rounding mode.
Initial value:
Initial value:
Rev. 3.00 Sep. 28, 2009 Page 100 of 1650
REJ09B0313-0300
Bit
31 to 23
22
21
20
19
18
R/W:
R/W:
Bit:
Bit:
Floating-Point Status/Control Register (FPSCR)
R/W
Bit Name
—
QIS
—
SZ
PR
DN
31
15
R
0
0
-
R/W
30
14
R
0
0
-
Cause
R/W
29
13
R
0
0
-
Initial
Value
All 0
0
0
0
0
1
R/W
28
12
R
0
0
-
R/W
27
11
R
0
0
-
R/W
R
R/W
R
R/W
R/W
R
R/W
26
10
R
0
0
-
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Nonnunerical Processing Mode
0: Processes qNaN or ±∞ as such
1: Treats qNaN or ±∞ as the same as sNaN (valid only
Reserved
This bit is always read as 0. The write value should
always be 0.
Transfer Size Mode
0: Data size of FMOV instruction is 32-bits
1: Data size of FMOV instruction is a 32-bit register pair
Precision Mode
0: Floating-point instructions are executed as single-
1: Floating-point instructions are executed as double-
Denormalization Mode (Always fixed to 1 in SH2A-
FPU)
1: Denormalized number is treated as zero
Enable
R/W
25
R
0
9
0
when FPSCR.Enable.V = 1)
(64 bits)
precision operations
precision operations (graphics support instructions
are undefined)
-
R/W
24
R
0
8
0
-
R/W
23
R
0
7
0
-
R/W
R/W
QIS
22
0
6
0
R/W
21
R
0
5
0
-
R/W
R/W
Flag
20
SZ
0
4
0
R/W
R/W
19
PR
0
3
0
R/W
DN
18
R
1
2
0
R/W
R/W
RM1
17
0
1
0
Cause
R/W
R/W
RM0
16
0
0
1