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RC64475 Schematic ( PDF Datasheet ) - Integrated Device Technology

Teilenummer RC64475
Beschreibung (RC64474 / RC64475) RISControllerTM Embedded 64-bit Microprocessor
Hersteller Integrated Device Technology
Logo Integrated Device Technology Logo 




Gesamt 25 Seiten
RC64475 Datasheet, Funktion
RISControllerTM Embedded
64-bit Microprocessor, based on
RISCore4000TM
RC64474
RC64475
Features
High performance 64-bit microprocessor, based on the
RISCore4000
– Minimized branch and load delays, through streamlined
5-stage scalar pipeline.
– Single and double precision floating-point unit
– 125 peak MFLOP/s at 250 MHz
– 330 Dhrystone MIPS at 250 MHz
– Flexible RC4700-compatible MMU
– Joint TLB on-chip, for virtual-to-physical address mapping
On-chip two-way set associative caches
– 16KB instruction cache (I-cache)
– 16KB data cache (D-cache)
Optional I-cache and D-cache locking (per set), provides
improved real-time support
Enhanced, flexible bus interface allows simple, low-cost
design
– 64-bit Bus Interface option, 1000MB/s bandwidth support
– 32-bit Bus Interface option, 500MB/s bandwidth support
– SDRAM timing protocol, through delayed data in write cycles
– RC4000/RC5000 family bus-protocol compatibility
– Bus runs at fraction of pipeline clock (1/2 to 1/8)
Implements MIPS-III Instruction Set Architecture (ISA)
3.3V core with 3.3V I/O
Block diagram
Software compatible with entire RISController Series of
Embedded Microprocessors
Industrial temperature range support
Active power management
– Powers down inactive units, through sleep-mode feature
100% pin compatibility between RC64574, RC64474 and
RC4640
100% pin compatibility between RC64575, RC64475 and
RC4650
RC64474 available in 128-pin QFP package, for 32-bit only
systems
RC64475 available in 208-pin QFP package, for full 64/32 bit
systems
Simplified board-level testing, through full Joint Test Action
Group (JTAG) boundary scan
Windows® CE compliant
330 MIPS
64-bit
RISCore4000
CPU Core
System Control
Coprocessor
(CPO)
125 MFLOPS
Single/Double
Precision
FPA
www.DataSheet4U.com
Control Bus
Instruction Bus
16KB
Instruction Cache
(Lockable)
Data Bus
32-/64-bit
Synchronized
System
Interface
16KB
Data Cache
(Lockable)
The IDT logo is a trademark and RC32134, RC32364, RC64145, RC64474, RC64475, RC4650, RC4640, RC4600,RC4700 RC3081, RC3052, RC3051, RC3041, RISController, and RISCore are trademarks of Inte-
grated Device Technology, Inc.
© 2001 Integrated Device Technology, Inc.
1 of 25
April 10, 2001
DSC 4952






RC64475 Datasheet, Funktion
RC64474™ RC64475™
Power Management
Executing the WAIT instruction enables the processor to enter
Standby mode. The internal clocks will shut down, thus freezing the
pipeline. The PLL, internal timer, and some of the input pins (Int[5:0]*,
NMI*, ExtReq*, Reset*, and ColdReset*) will continue to run. Once the
CPU is in Standby Mode, any interrupt, including the internally gener-
ated timer interrupt, will cause the CPU to exit Standby Mode.
Thermal Considerations
The RC64474/475 come in a QFP with a drop-in heat spreader and
are guaranteed in a case temperature range of 0° to +85° C, for
commercial temperature devices; - 40° to +85° for industrial tempera-
ture devices. The type of package, speed (power) of the device, and
airflow conditions affect the equivalent ambient temperature conditions
that will meet this specification.
The equivalent allowable ambient temperature, TA, can be calculated
using the thermal resistance from case to ambient (CA) of the given
package. The following equation relates ambient and case tempera-
tures:
TA = TC - P * CA
where P is the maximum power consumption at hot temperature,
calculated by using the maximum ICC specification for the device.
Typical values for CA at various airflows are shown in Table 4. Note
that the RC64474/475 processors implement advanced power manage-
ment, which substantially reduces the typical power dissipation of the
device.
January 17, 2000: Added “with DSP extensions” in the CPU row
under RC64574 and RC64575 columns in Table 1. Added “lockable by
line” in the Caches row under RC64574 and RC64575 columns in Table
1. Revised Data Output and Data Output Hold rows in System Interface
Parameters table.
February 10, 2000: Revised values in Table 4, Thermal Resistance.
Old values were:
CA
Airflow (ft/min) 0
128 QFP
20
208 QFP
20
200 400 600 800 1000
12 9 8 7 6
12 9 8 7 6
March 13, 2000: Replaced existing figure in Mode Configuration
Interface Reset Sequence section with 3 reset figures.
March 28, 2000: Removed the symbol tDZ from Figure 3.
April 17, 2000: Changed VIH value in 200MHz column from 2.0V to
0.7VCC.
April 10, 2001: In the Data Output and Data Output Hold categories
of the System Interface Parameters table, changed values in the Min
column for all speeds from 1.0 to 0. Deleted Output for Loading AC
Testing diagram and added Output Loading for AC Timing diagram
(Figure 8).
CA
Airflow (ft/min) 0 200 400 600 800 1000
128 QFP
208 QFP
16 10 9 7 6 5
20 13 10 9 8 7
Table 4 Thermal Resistance (CA) at Various Airflows
Data Sheet Revision History
December 1998: Changed ordering code on 128-pin package from
DQ / DQI (Industrial) to DZ / DZI (Industrial).
January 1999: Removed 5V tolerance capability and deleted 5V
tolerant pin.
February 1999: Changed the package drawings to reflect the new
208-pin DP (DPI) and 128-pin DZ (DZI) packages.
wwwM.Dayat1a9S9h9e:eRt4eUm.ocvoemd “Preliminary” status from data sheet.
Changes in DC Electrical Characteristics table. Changes in Pin
Description table. Changes in Clock Parameters table. Changes in
System Interface Parameters table.
September 1999: Updated Revision History section.
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April 10, 2001

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RC64475 pdf, datenblatt
RC64474™ RC64475™
Pin
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Function
Vcc
Vss
SysAdC0
SysCmd5
SysAD8
Vcc
Vss
SysCmd6
SysAD9
Vcc
Vss
SysCCmd7
SysAD10
SysCmd8
Vcc
Vss
SysAD11
SysCmdP
SysAD12
Pin Function Pin Function Pin
46 VssP
47 VccP
48 TDO
49 TMS
50 TCK
51 TRst*
52 TDI
53 Vss
54 SysADC3
55 VccOK
56 Vss
57 Vcc
58 SysAD31
59 Vss
60 Vcc
61 SysAD30
62 SysAD29
63 Reset*
64 Vss
78 Vcc
79 SysAD24
80 SysADC2
81 Vss
82 Vcc
83 NMI*
84 SysAD23
85 Release*
86 Vss
87 Vcc
88 SysAD22
89 Modein
90 RdRdy*
91 SysAD21
92 Vss
93 Vcc
94 ExtRqst*
95 SysAD20
96 ValidOut*
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
Table 7 RC64474 128-pin QFP Package Pin-out (Page 2 of 2)
Function
Int2*
Vcc
Vss
Int3*
SysAD0
Int4*
Vcc
Vss
SysAD1
Int5*
SysAD2
Vcc
Vss
SysCmd0
SysAd3
Vcc
Vss
SysCmd1
SysAD4
Socket Compatibility—RC64474 & RC4640
To ensure socket compatibility between the RC4640 and the RC64474 devices, several pin changes are required, as shown below.
Pin RC4640
1 N.C
48 Vss
49 Vss
50 Vss
51 Vss
52 Vss
www.D7a1taSheeNt4.CU..com
RC64574/
RC64474
Compatible to
RV4640?
Comments
JTAG32*
Yes.
Pin has an internal pull-down, to enable 32-bit scan.
Can also be left a N.C.
TDO
TMS
TCK
TRst*
TDI
JR_Vcc
Yes.
Yes.
Yes.
Yes.
Yes.
Yes.
Can be driven with Vss, if JTAG is not needed. Is tristated when TRst* is low.
Can be driven with Vss if JTAG is not needed.
Can be driven with Vss if JTAG is not needed.
Can be driven with Vss if JTAG is not needed.
Can be driven with Vss if JTAG is not needed.
Can be left N.C. in RC64474, if JTAG is not need. If JTAG is needed, it must
be driven to Vcc.
Table 8 RC64574 Socket Compatibility to RC64474 and R4640
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April 10, 2001

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