參數(shù)資料
型號(hào)： INTELDX4
廠商： Intel Corp.
英文描述： Embedded Write-Back Enhanced Processor(32位回復(fù)嵌入式增強(qiáng)型處理器)
中文描述： 嵌入式回寫(xiě)增強(qiáng)型處理器（32位回復(fù)嵌入式增強(qiáng)型處理器）
文件頁(yè)數(shù)： 33/50頁(yè)
文件大?。?/td> 534K
代理商： INTELDX4
Embedded Write-Back Enhanced IntelDX4 Processor
29
4.3.2
Boundary Scan Register Bits and Bit
Order
The boundary scan register contains a cell for each
pin as well as cells for control of bidirectional and
three-state pins. There are “Reserved” bits which
correspond to no-connect (N/C) signals of the
Embedded
Write-Back
processor. Control registers WRCTL, ABUSCTL,
BUSCTL, and MISCCTL are used to select the
direction of bidirectional or three-state output signal
pins. A “1” in these cells designates that the
associated bus or bits are floated if the pins are
three-state, or selected as input if they are bidirec-
tional.
WRCTL controls D31-D0 and DP3–DP0
ABUSCTL controls A31-A2
BUSCTL controls ADS#, BLAST#, PLOCK#,
LOCK#, W/R#, BE0#, BE1#, BE2#, BE3#, M/IO#,
D/C#, PWT, PCD, and CACHE#
MISCCTL controls PCHK#, HLDA, BREQ, and
HITM#
Enhanced
IntelDX4
The following is the bit order of the Embedded Write-
Back Enhanced IntelDX4 processor boundary scan
register:
Table 15. Boundary Scan Component Identification Code (Write-Back/Enhanced Bus Mode)
Version
Part Number
Mfg ID
009H = Intel
1
V
1=3.3 V
Intel
Architecture
Type
Family
0100 = Intel486
CPU Family
Model
01001 =
Embedded Write-
Back Enhanced
IntelDX4 processor
31----28
27
26-----------21
20----17
16--------12
11------------1
0
XXXX
1
000001
0100
01001
00000001001
1
(Intel releases information about version numbers as needed)
Boundary Scan Component Identification Code = x828 9013 (Hex)
TDO
←
A2, A3, A4, A5, RESERVED#, A6,
A7, A8, A9, A10, A11, A12, A13,
A14, A15, A16, A17, A18, A19,
A20, A21, A22, A23, A24, A25,
A26, A27, A28, A29, A30, A31,
DP0, D0, D1, D2, D3, D4, D5, D6,
D7, DP1, D8, D9, D10, D11, D12,
D13, D14, D15, DP2, D16, D17,
D18, D19, D20, D21, D22, D23,
DP3, D24, D25, D26, D27, D28,
D29,
D30,
IGNNE#, INV, CACHE#, FERR#,
SMI#,
WB/WT#,
SMIACT#, SRESET, NMI, INTR,
FLUSH#,
EADS#, PCD, PWT, D/C#, M/IO#,
BE3#, BE2#, BE1#, BE0#, BREQ,
W/R#,
HLDA,
HOLD, KEN#, RDY#, CLKMUL,
BS8#, BS16#, BOFF#, BRDY#,
PCHK#,
BLAST#,
BUSCTL, ABUSCTL, WRCTL
D31,
STPCLK#,
HITM#,
RESET,
A20M#,
CLK,
AHOLD,
LOCK#,
ADS#,
PLOCK#,
MISCCTL,
←
TDI
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