WED3C755E8M-XBX Ver la hoja de datos (PDF) - White Electronic Designs Corporation
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WED3C755E8M-XBX Datasheet PDF : 14 Pages
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White Electronic Designs WED3C755E8M-XBX
POWER CONSUMTION
VCC=AVCC=2.0±0.1V, OVCC=3.3V ±5% VDC, GND=0 VDC, 0≤Tj<105°C
Full-on Mode
Typical
Maximum
Doze Mode
Maximum
Nap Mode
Maximum
Sleep Mode
Maximum
Sleep Mode–PLL and DLL Disabled
Maximum
NOTES:
1. These values apply for all valid 60x bus and L2 bus ratios. The values do
not include OVCC; AVCC and L2AVCC suppling power. OVCC power is system
dependent, but is typically <10% of VCC power. Worst case power consumption,
for AVCC=15mW and L2AVCC=15mW.
2. Maximum power is measured at VCC=2.1V while running an entirely cache-
resident, contrived sequence of instructions which keep the execution units
maximally busy.
Processor (CPU) Frequency/L2 Fre-
quency
Unit
Notes
300/150 MHz
350/175MHz
4.1
4.6
W
1, 3
6.7
7.9
W
1, 2
2.5
2.8
W
1, 2
1700
1800
mW
1, 2
1200
1300
mW
1, 2
500
500
mW
1, 2
3. Typical power is an average value measured at VCC=AVCC=L2AVCC=2.0V,
OVCC=L2OVCC=3.3V in a system, executing typical applications and benchmark
sequences.
BGA THERMAL RESISTANCE
Description
Symbol
PPC
SSRAM
Junction to Ambient (No Airflow)
Theta JA
14.2
11.2
Junction to Ball
Theta JB
8.6
5.7
Junction to Case (Top)
Theta JC
0.1
0.1
NOTE 1: Refer to PBGA Thermal Resistance Correlation at www.whiteedc.com in the application notes section for modeling conditions
Units
C/W
C/W
C/W
Notes
1
1
1
L2 CACHE CONTROL REGISTER (L2CR)
The L2 cache control register, shown in Figure 5, is a supervisor-level, implementation-specific SPR used to configure
and operate the L2 cache. It is cleared by hard reset or power-on reset.
FIG. 5 - L2 CACHE CONTROL REGISTER (L2CR)
L2E L2PE L2SIZ L2CLK L2RAM L2DO L2I L2CTL L2WT L2TS L20H L2SL L2DF L2BYP 0
0
L2IO L2CS L2DRO
L2CTR
0 1 2 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
The L2CR bits are described in Table 1.
L2IP
30 31
Reserved
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
May, 2003
Rev 2
8
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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