DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD30500, 30500A, 30500B
VR 5000TM, VR 5000ATM, VR 5000B
TM
64-BIT MICROPROCESSOR
DESCRIPTION
The µPD30500 (VR 5000), µPD30500A (VR 5000A), and µPD30500B
bit RISC (Reduced Instruction Set Computer) type microprocessors employing the RISC architecture developed by
TM
MIPS
VR 4000TM Series and higher, and completely compatible with those of the VR 10000TM. Therefore, present
applications can be used as they are.
Technologies Inc.
The instructions of the VR 5000, VR 5000A, and VR 5000B are compatible with those of the VR 3000TM Series and
Note Under development
Detailed functions are described in the following manual. Be sure to read the manual when
designing your system.
R5000, V R5000A, V R5000B User’s Manual (U11761E)
• V
FEATURES
• Employs 64-bit MIPS-based RISC architecture
• High-speed processing
• 2-way super scalar 5-stage pipeline
µ
• 5.5 SPECint95, 5.5 SPECfp95, 278 MIPS (
6.6 SPECint95, 6.6 SPECfp95, 353 MIPS (µPD30500A)
8 SPECint95, 8 SPECfp95, 423 MIPS (µPD30500B)
• High-speed translation buffer mechanism (TLB) (48 entries)
• Address space Physical: 36 bits, Virtual: 40 bits
• Floating-point unit (FPU)
• Sum-of-products operation instruction supported
• Primary cache memory (instruction/data: 32 Kbytes each)
• Secondary cache controller
• Maximum operating frequency Internal: 200 MHz (
External: 100 MHz
• Selectable external/internal multiple rate from twice to eight times
• Instruction set compatible with V
• Supply voltage: 3.3 V ± 5% (µPD30500)
Core: 2.5 V ± 5%, I/O: 3.3 V ± 5% (µPD30500A)
Core: 1.8 V ± 0.1 V, I/O: 3.3 V ± 5% (
R3000 and V R4000 Series and higher (conforms to MIPS I, II, III, and IV)
PD30500)
µ
PD30500), 250 MHz (µPD30500A), 300 MHz (µPD30500B)
µ
PD30500B)
Note
(VR 5000B) are a high-performance, 64-
Unless otherwise specified, the VR 5000 (µPD30500) is treated as the representative model throughout this
document.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. U12031EJ4V0DS00 (4th edition)
Date Published May 2000 N CP(K)
Printed in Japan
The mark shows major revised points.
©
MIPS Technologies Inc.
©
1997,1999
1997
µ
PD30500, 30500A, 30500B
APPLICATIONS
• High-performance embedded systems
• Multimedia systems
• Entry-class computers
• Image processing systems
ORDERING INFORMATION
Part number Package Maximum operating frequency (MHz)
µ
PD30500RJ-150 223-pin ceramic PGA (48 × 48) 150
µ
PD30500RJ-180 223-pin ceramic PGA (48 × 48) 180
µ
PD30500RJ-200 223-pin ceramic PGA (48 × 48) 200
µ
PD30500S2-150 272-pin plastic BGA (C/D advanced type) (29 × 29) 150
µ
PD30500S2-180 272-pin plastic BGA (C/D advanced type) (29 × 29) 180
µ
PD30500S2-200 272-pin plastic BGA (C/D advanced type) (29 × 29) 200
µ
PD30500AS2-250 272-pin plastic BGA (C/D advanced type) (29 × 29) 250
µ
PD30500BS2-300
Note
272-pin plastic BGA (C/D advanced type) (29 × 29) 300
Note Under development
MAIN DIFFERENCES BETWEEN VR 5000, VR 5000A, AND VR 5000B
Parameter VR 5000 VR 5000A VR 5000B
Maximum internal operating frequency
Internal multiplication ratio for clock 2, 3, 4, 5, 6, 7, 8 2, 2.5
interface input
Supply voltage 3.3 V ± 5% Core: 2.5 V ± 5% Core: 1.8 V ± 0.1 V
Package • 223-pin ceramic PGA • 272-pin plastic BGA (C/D advanced type)
Notes 1. Under development
2. Selectable only when SysClock = 100 MHz
150/180/200 MHz 250 MHz 300 MHz
Note 2
, 3, 4, 5, 6, 7, 8
I/O: 3.3 V ± 5% I/O: 3.3 V ± 5%
• 272-pin plastic BGA
(C/D advanced type)
Note 1
2
Data Sheet U12031EJ4V0DS00
PIN CONFIGURATION
• 223-pin ceramic PGA (48 × 48)
µ
PD30500RJ-150
µ
PD30500RJ-180
µ
PD30500RJ-200
Bottom View Top View
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
µ
PD30500, 30500A, 30500B
A B C D E F G H J K L M N P R T U V
Index mark
V U T R P N M L K J H G F E D C B A
Data Sheet U12031EJ4V0DS00
3
µ
PD30500, 30500A, 30500B
No. Name No. Name No. Name No. Name No. Name No. Name
A2 VDD
A3 GND
A4 VDD
A5 GND
A6 GND
A7 VDD
A8 GND
A9 VDD
A10 GND
A11 VDD
A12 GND
A13 VDD
A14 GND
A15 GND
A16 VDD
A17 GND
A18 GND
B1 GND
B2 GND
B3 VDD
B4 SysADC4
B5 SysADC0
B6 SysAD18
B7 SysAD20
B8 SysAD54
B9 SysAD26
B10 SysAD58
B11 SysAD30
B12 SysAD46
B13 SysAD12
B14 SysAD40
B15 SysAD6
B16 GND
B17 VDD
B18 VDD
C1 VDD
C2 VDD
C3 ValidOut
C4 NMI
C5 SysADC6
C6 SysAD16
C7 SysAD50
C8 SysAD22
C9 SysAD24
C10 SysAD28
C11 SysAD62
C12 SysAD44
C13 SysAD10
C14 SysAD38
C15 SysAD4
C16 SysAD34
C17 SysAD2
C18 GND
D1 GND
D2 Int3
D3 Int5
D4 Release
D5 VDD
D6 SysADC2
D7 SysAD48
D8 SysAD52
D9 SysAD56
D10 SysAD60
D11 SysAD14
D12 SysAD42
D13 SysAD8
D14 SysAD36
D15 ColdReset
D16 SysAD0
D17 ScTOE
D18 VDD
E1 GND
E2 Int0
E3 Int2
E4 Int4
E15 SysAD32
E16 ScDCE1
E17 ScCWE1
E18 VDD
F1 VDD
F2 Reserved
F3 ScValid
F4 Int1
F15 ScDCE0
F16 ScCWE0
F17 ScTDE
F18 GND
G1 GND
G2 Reserved
G3 Reserved
G4 Reserved
G15 ScCLR
G16 ScTCE
G17 Modeln
G18 VDD
H1 VDD
H2 Reserved
H3 Reserved
H4 Reserved
H15 VDD Ok
H16 ModeClock
H17 SysClock
H18 GND
J1 GND
J2 WrRdy
J3 Validln
J4 ExtRqst
J15 Reserved
J16 Reserved
J17 Reserved
J18 VDD
K1 VDD
K2 ScMatch
K3 RdRdy
K4 ScDOE
K15 Reserved
K16 VDD P
K17 GNDP
K18 GND
L1 GND
L2 SysCmd8
L3 SysCmd7
L4 SysCmd5
L15 ScLine12
L16 ScLine14
L17 ScLine15
L18 VDD
M1 VDD
M2 SysCmd6
M3 SysCmd4
M4 SysCmd1
M15 ScLine8
M16 ScLine10
M17 ScLine13
M18 GND
N1 GND
N2 SysCmd3
N3 SysCmd2
N4 SysADC7
N15 ScLine5
N16 ScLine7
N17 ScLine11
N18 VDD
P1 VDD
P2 SysCmd0
P3 SysCmdP
P4 SysADC1
P15 ScLine2
P16 ScLine4
P17 ScLine9
P18 GND
R1 VDD
R2 SysADC5
R3 SysADC3
R4 BigEndian
R5 SysAD49
R6 SysAD51
R7 SysAD55
R8 SysAD27
R9 SysAD31
R10 SysAD43
R11 SysAD39
R12 SysAD35
R13 SysAD1
R14 ScWord1
R15 ScLine0
R16 ScLine3
R17 ScLine6
R18 GND
T1 GND
T2 SysAD15
T3 SysAD47
T4 SysAD17
T5 SysAD19
T6 SysAD23
T7 SysAD57
T8 SysAD29
T9 VDD
T10 SysAD45
T11 SysAD41
T12 SysAD7
T13 SysAD5
T14 SysAD33
T15 Reset
T16 ScLine1
T17 VDD
T18 VDD
U1 VDD
U2 VDD
U3 GND
U4 SysAD21
U5 SysAD53
U6 SysAD25
U7 SysAD59
U8 SysAD61
U9 SysAD63
U10 SysAD13
U11 SysAD11
U12 SysAD9
U13 SysAD37
U14 SysAD3
U15 ScWord0
U16 VDD
U17 GND
U18 GND
V1 GND
V2 GND
V3 VDD
V4 GND
V5 GND
V6 VDD
V7 GND
V8 VDD
V9 GND
V10 VDD
V11 GND
V12 VDD
V13 GND
V14 VDD
V15 GND
V16 GND
V17 VDD
V18 GND
4
Data Sheet U12031EJ4V0DS00
• 272-pin plastic BGA (C/D advanced type) (29 × 29)
µ
PD30500S2-150
µ
PD30500S2-180
µ
PD30500S2-200
µ
PD30500AS2-250
µ
PD30500BS2-300
Note
Bottom View Top View
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
µ
PD30500, 30500A, 30500B
AAYWVUTRPNMLKJHGFEDCBA ABCDEFGHJKLMNPRTUVWYAA
Note Under development
Data Sheet U12031EJ4V0DS00
5
µ
PD30500, 30500A, 30500B
(1)µPD30500
No. Name No. Name No. Name No. Name No. Name No. Name
A1 GND
A2 VDD
A3 GND
A4 SysAD32
A5 GND
A6 ScCWE1
A7 GND
A8 VDD Ok
A9 GND
A10 SysClock
A11 GND
A12 ScLine15
A13 GND
A14 ScLine12
A15 GND
A16 ScLine7
A17 GND
A18 ScLine2
A19 GND
A20 VDD
A21 GND
B1 VDD
B2 VDD
B3 VDD
B4 SysAD2
B5 SysAD0
B6 ScTOE
B7 ScCLR
B8 ScTDE
B9 ModeClock
B10 Reserved
B11 Reserved
B12 NC
B13 ScLine14
B14 ScLine10
B15 ScLine9
B16 ScLine6
B17 ScLine3
B18 ScLine1
B19 VDD
B20 VDD
B21 VDD
C1 GND
C2 VDD
C3 ColdReset
C4 SysAD34
C5 ScDCE1
C6 ScDCE0
C7 ScCWE0
C8 ScTCE
C9 Modeln
C10 Reserved
C11 GNDP
C12 Reserved
C13 ScLine13
C14 ScLine11
C15 ScLine8
C16 ScLine5
C17 ScLine4
C18 ScLine0
C19 Reset
C20 VDD
C21 GND
D1 VDD
D2 VDD
D3 VDD
D4 GND
D5 VDD
D6 GND
D7 VDD
D8 VDD
D9 GND
D10 VDD
D11 VDD P
D12 VDD
D13 GND
D14 VDD
D15 VDD
D16 GND
D17 VDD
D18 GND
D19 VDD
D20 VDD
D21 VDD
E1 GND
E2 SysAD36
E3 SysAD4
E4 VDD
E18 VDD
E19 ScWord1
E20 ScWord0
E21 GND
F1 SysAD8
F2 SysAD38
F3 SysAD6
F4 GND
F18 GND
F19 SysAD1
F20 SysAD33
F21 SysAD3
G1 GND
G2 SysAD10
G3 SysAD40
G4 VDD
G18 VDD
G19 SysAD35
G20 SysAD5
G21 GND
H1 SysAD42
H2 SysAD44
H3 SysAD12
H4 VDD
H18 VDD
H19 SysAD7
H20 SysAD39
H21 SysAD37
J1 GND
J2 SysAD46
J3 SysAD14
J4 GND
J18 GND
J19 SysAD9
J20 SysAD41
J21 GND
K1 SysAD60
K2 SysAD30
K3 SysAD62
K4 VDD
K18 VDD
K19 SysAD11
K20 SysAD43
K21 SysAD13
L1 GND
L2 SysAD58
L3 SysAD28
L4 VDD
L18 VDD
L19 SysAD45
L20 SysAD63
L21 GND
M1 SysAD26
M2 SysAD56
M3 SysAD24
M4 VDD
M18 VDD
M19 SysAD29
M20 SysAD61
M21 SysAD31
N1 GND
N2 SysAD54
N3 SysAD22
N4 GND
N18 GND
N19 SysAD27
N20 SysAD59
N21 GND
P1 SysAD50
P2 SysAD52
P3 SysAD20
P4 VDD
P18 VDD
P19 SysAD25
P20 SysAD57
P21 SysAD55
R1 GND
R2 SysAD18
R3 SysAD48
R4 VDD
R18 VDD
R19 SysAD53
R20 SysAD23
R21 GND
T1 SysAD16
T2 SysADC0
T3 SysADC2
T4 GND
T18 GND
T19 SysAD19
T20 SysAD51
T21 SysAD21
U1 GND
U2 SysADC4
U3 SysADC6
U4 VDD
U18 VDD
U19 SysAD17
U20 SysAD49
U21 GND
V1 VDD
V2 VDD
V3 VDD
V4 GND
V5 NMI
V6 GND
V7 VDD
V8 VDD
V9 GND
V10 VDD
V11 VDD
V12 VDD
V13 GND
V14 VDD
V15 VDD
V16 GND
V17 VDD
V18 GND
V19 VDD
V20 VDD
V21 VDD
W1 GND
W2 VDD
W3 VDD
W4 VDD
W5 Int5
W6 Int4
W7 Int1
W8 Reserved
W9 Reserved
W10 Reserved
W11 Validln
W12 ScDOE
W13 SysCmd7
W14 SysCmd4
W15 SysCmd1
W16 SysADC7
W17 SysADC5
W18 SysAD47
W19 BigEndian
W20 VDD
W21 GND
Y1 VDD
Y2 VDD
Y3 VDD
Y4 Release
Y5 Int3
Y6 Int2
Y7 ScValid
Y8 Reserved
Y9 Reserved
Y10 Reserved
Y11 ExtRqst
Y12 RdRdy
Y13 SysCmd8
Y14 SysCmd5
Y15 SysCmd3
Y16 SysCmd0
Y17 SysCmdP
Y18 SysADC1
Y19 SysAD15
Y20 VDD
Y21 VDD
AA1 GND
AA2 VDD
AA3 GND
AA4 ValidOut
AA5 GND
AA6 Int0
AA7 GND
AA8 Reserved
AA9 GND
AA10 WrRdy
AA11 GND
AA12 ScMatch
AA13 GND
AA14 SysCmd6
AA15 GND
AA16 SysCmd2
AA17 GND
AA18 SysADC3
AA19 GND
AA20 VDD
AA21 GND
6
Data Sheet U12031EJ4V0DS00
µ
PD30500, 30500A, 30500B
(2)µPD30500A, 30500B
No. Name No. Name No. Name No. Name No. Name No. Name
A1 GND
A2 VDD IO
A3 GND
A4 SysAD32
A5 GND
A6 ScCWE1
A7 GND
A8 VDD Ok
A9 GND
A10 SysClock
A11 GND
A12 ScLine15
A13 GND
A14 ScLine12
A15 GND
A16 ScLine7
A17 GND
A18 ScLine2
A19 GND
A20 VDD IO
A21 GND
B1 VDD IO
B2 VDD IO
B3 VDD IO
B4 SysAD2
B5 SysAD0
B6 ScTOE
B7 ScCLR
B8 ScTDE
B9 ModeClock
B10 GND
B11 GND
B12 GND
B13 ScLine14
B14 ScLine10
B15 ScLine9
B16 ScLine6
B17 ScLine3
B18 ScLine1
B19 VDD IO
B20 VDD IO
B21 VDD IO
C1 GND
C2 VDD IO
C3 ColdReset
C4 SysAD34
C5 ScDCE1
C6 ScDCE0
C7 ScCWE0
C8 ScTCE
C9 Modeln
C10 NC
C11 GNDP
C12 GND
C13 ScLine13
C14 ScLine11
C15 ScLine8
C16 ScLine5
C17 ScLine4
C18 ScLine0
C19 Reset
C20 VDD IO
C21 GND
D1 VDD
D2 VDD
D3 VDD
D4 GND
D5 VDD
D6 GND
D7 VDD IO
D8 VDD
D9 GND
D10 VDD IO
D11 VDD P
D12 VDD
D13 GND
D14 VDD IO
D15 VDD
D16 GND
D17 VDD IO
D18 GND
D19 VDD
D20 VDD
D21 VDD
E1 GND
E2 SysAD36
E3 SysAD4
E4 VDD
E18 VDD
E19 ScWord1
E20 ScWord0
E21 GND
F1 SysAD8
F2 SysAD38
F3 SysAD6
F4 GND
F18 GND
F19 SysAD1
F20 SysAD33
F21 SysAD3
G1 GND
G2 SysAD10
G3 SysAD40
G4 VDD IO
G18 VDD IO
G19 SysAD35
G20 SysAD5
G21 GND
H1 SysAD42
H2 SysAD44
H3 SysAD12
H4 VDD
H18 VDD
H19 SysAD7
H20 SysAD39
H21 SysAD37
J1 GND
J2 SysAD46
J3 SysAD14
J4 GND
J18 GND
J19 SysAD9
J20 SysAD41
J21 GND
K1 SysAD60
K2 SysAD30
K3 SysAD62
K4 VDD IO
K18 VDD IO
K19 SysAD11
K20 SysAD43
K21 SysAD13
L1 GND
L2 SysAD58
L3 SysAD28
L4 VDD
L18 VDD
L19 SysAD45
L20 SysAD63
L21 GND
M1 SysAD26
M2 SysAD56
M3 SysAD24
M4 VDD IO
M18 VDD IO
M19 SysAD29
M20 SysAD61
M21 SysAD31
N1 GND
N2 SysAD54
N3 SysAD22
N4 GND
N18 GND
N19 SysAD27
N20 SysAD59
N21 GND
P1 SysAD50
P2 SysAD52
P3 SysAD20
P4 VDD
P18 VDD
P19 SysAD25
P20 SysAD57
P21 SysAD55
R1 GND
R2 SysAD18
R3 SysAD48
R4 VDD IO
R18 VDD IO
R19 SysAD53
R20 SysAD23
R21 GND
T1 SysAD16
T2 SysADC0
T3 SysADC2
T4 GND
T18 GND
T19 SysAD19
T20 SysAD51
T21 SysAD21
U1 GND
U2 SysADC4
U3 SysADC6
U4 VDD
U18 VDD
U19 SysAD17
U20 SysAD49
U21 GND
V1 VDD
V2 VDD
V3 VDD
V4 GND
V5 NMI
V6 GND
V7 VDD
V8 VDD IO
V9 GND
V10 VDD
V11 VDD IO
V12 VDD
V13 GND
V14 VDD IO
V15 VDD
V16 GND
V17 VDD IO
V18 GND
V19 VDD
V20 VDD
V21 VDD
W1 GND
W2 VDD IO
W3 VDD IO
W4 VDD IO
W5 Int5
W6 Int4
W7 Int1
W8 GND
W9 GND
W10 VDD
W11 Validln
W12 ScDOE
W13 SysCmd7
W14 SysCmd4
W15 SysCmd1
W16 SysADC7
W17 SysADC5
W18 SysAD47
W19 BigEndian
W20 VDD IO
W21 GND
Y1 VDD IO
Y2 VDD IO
Y3 VDD IO
Y4 Release
Y5 Int3
Y6 Int2
Y7 ScValid
Y8 GND
Y9 GND
Y10 GND
Y11 ExtRqst
Y12 RdRdy
Y13 SysCmd8
Y14 SysCmd5
Y15 SysCmd3
Y16 SysCmd0
Y17 SysCmdP
Y18 SysADC1
Y19 SysAD15
Y20 VDD IO
Y21 VDD IO
AA1 GND
AA2 VDD IO
AA3 GND
AA4 ValidOut
AA5 GND
AA6 Int0
AA7 GND
AA8 GND
AA9 GND
AA10 WrRdy
AA11 GND
AA12 ScMatch
AA13 GND
AA14 SysCmd6
AA15 GND
AA16 SysCmd2
AA17 GND
AA18 SysADC3
AA19 GND
AA20 VDD IO
AA21 GND
Data Sheet U12031EJ4V0DS00
7
PIN NAMES
BigEndian: Endian Mode Select
ColdReset: Cold Reset
ExtRqst: External Request
GND: Ground
GNDP: Quiet GND for PLL
Int (0:5): Interrupt Request
ModeClock: Boot Mode Clock
Modeln: Boot Mode Data In
NC: No Connection
NMI: Non-maskable Interrupt Request
RdRdy: Read Ready
Release: Release Interface
Reset: Reset
ScCLR: Secondary Cache Block Clear
ScCWE (0:1): Secondary Cache Write Enable
ScDCE (0:1): Data RAM Chip Enable
ScDOE: Data RAM Output Enable
ScLine (0:15): Secondary Cache Line Index
ScMatch: Secondary Cache Tag Match
ScTCE: Secondary Cache Tag RAM Chip Enable
ScTDE: Secondary Cache Tag RAM Data Enable
ScTOE: Secondary Cache Tag RAM Output Enable
ScValid: Secondary Cache Valid
ScWord (0:1): Secondary Cache Word Index
SysAD (0:63): System Address/Data Bus
SysADC (0:7): System Address/Data Check Bus
SysClock: System Clock
SysCmd (0:8): System Command/Data Identifier
SysCmdP: System Command/Data Identifier Bus Parity
Validln: Valid Input
ValidOut: Valid Output
DD: Power Supply (
V
VDD : Power Supply for Processor Core (µPD30500A, 30500B)
DDIO: Power Supply for Processor I/O (
V
VDD Ok: VDD is OK
VDD P: Quiet VDD for PLL
WrRdy: Write Ready
µ
PD30500)
µ
PD30500A, 30500B only)
µ
PD30500, 30500A, 30500B
8
Data Sheet U12031EJ4V0DS00
INTERNAL BLOCK DIAGRAM
µ
PD30500, 30500A, 30500B
Data, address
System interface
Instruction cache Data cache
Instruction address
Control
SysClock
Clock
generator
CP0
TLB
Execution unit
Floating-point unit
Pipeline control
Data Sheet U12031EJ4V0DS00
9
µ
PD30500, 30500A, 30500B
CONTENTS
1. PIN FUNCTIONS ................................................................................................................................ 11
2. ELECTRICAL SPECIFICATIONS ......................................................................................................13
2.1µPD30500 ....................................................................................................................................................13
2.2µPD30500A..................................................................................................................................................16
2.3µPD30500B (Preliminary) ..........................................................................................................................19
2.4 Test Condition ............................................................................................................................................ 22
2.5 Timing Chart ............................................................................................................................................... 22
3. PACKAGE DRAWING........................................................................................................................27
4. RECOMMENDED SOLDERING CONDITIONS ................................................................................. 29
APPENDIX DIFFERENCES BETWEEN THE VR 5000 AND VR4310 TM.................................................... 30
10
Data Sheet U12031EJ4V0DS00
1. PIN FUNCTIONS
Pin Name I/O Function
SysAD (0:63) I/O System address/data bus.
64-bit bus for communication between processor, secondary cache and external agent.
SysADC (0:7) I/O System address/data check bus.
8-bit bus including check bits for the SysAD bus.
SysCmd (0:8) I/O System command/data ID bus.
9-bit bus for communication of commands and data identifiers between processor
and external agent.
SysCmdP I/O System command/data ID bus parity.
1-bit even number parity bit for the SysCmd bus.
ValidIn Input Valid in.
Signal indicating that external agent has transmitted valid address or data onto
SysAD bus and valid command or data identifier onto SysCmd bus.
ValidOut Output Valid out.
Signal indicating that processor has transmitted valid address or data onto SysAD
bus and valid command or data identifier onto SysCmd bus.
ExtRqst Input External request.
Signal used by external agent to request for its use by system interface.
Release Output Interface release.
Signal indicating that the processor has released the system interface to the slave state.
WrRdy Output Write ready.
Signal indicating that the external agent can accept a processor write request.
RdRdy Input Read ready.
Signal indicating that external agent can accept a processor read request.
ScCLR Output Secondary cache block clear.
Clears all the valid bits of the tag RAM.
ScCWE (0:1) Output Secondary cache write enable.
Write enable signal for the secondary cache RAM.
ScDCE (0:1) Output Data RAM chip select.
Chip select signal for secondary cache RAM.
ScDOE Input Data RAM output enable.
Data output enable signal from the external agent.
ScLine (0:15) Output Secondary cache line index.
Cache line index output of the secondary cache.
ScMatch Input Secondary cache tag match.
Tag match signal from secondary cache tag RAM.
ScTCE Output Secondary cache tag RAM chip select.
Chip select signal of the secondary cache tag RAM.
ScTDE Output Secondary cache tag RAM data enable.
Data enable signal from the secondary cache tag RAM.
ScTOE Output Secondary cache tag RAM output enable.
Output enable signal from the secondary cache tag RAM.
ScWord (0:1) I/O Secondary cache word index.
Signal indicating that the double word of the secondary cache index is correct.
ScValid I/O Secondary cache valid.
Signal indicating that the data of the secondary cache is valid.
µ
PD30500, 30500A, 30500B
Data Sheet U12031EJ4V0DS00
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