MPC8540 datasheet(180/1302 Pages) FREESCALE

180 / 1302 page

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

3-12

Freescale Semiconductor

Signal Descriptions

LWE[2:3]/

LSDDQM[2:3]/

LBS[2:3]

LBC write enable/byte

lane data mask/byte

select 2–3

LBC

cfg_host_agt0

cfg_host_agt1

13-1/13-5

MA[0:14]

DDR address

DDR memory

—

9-3/9-5

MBA[0:1]

DDR bank select

DDR memory

—

9-3/9-5

MCAS

DDR column address

strobe

DDR memory

—

9-3/9-5

MCKE[0:1]

DDR clock enable

DDR memory

—

9-4/9-8

MCK[0:5], MCK[0:5] DDR differential clocks (3

pairs/DIMM)

DDR memory

—

9-4/9-8

MCP

Machine check processor

PIC

—

10-6/10-8

MCS[0:3]

DDR chip select

(2/DIMM)

DDR memory

—

9-3/9-5

MDM8

DDR ECC data mask

DDR memory

—

9-3/9-5

MDM[0:7]

DDR data mask

DDR memory

—

9-3/9-5

MDQS8

DDR ECC data strobe

DDR memory

—

I/O

9-3/9-5

MDQS[0:7]

DDR data strobe

DDR memory

—

I/O

9-3/9-5

MDQ[0:63]

DDR data

DDR memory

—

I/O

9-3/9-5

MDVAL

Memory debug data valid

Debug

—

20-2/20-6

MECC[0:7]

DDR error correcting

code

DDR memory

—

I/O

9-3/9-5

MRAS

DDR row address strobe

DDR memory

—

9-3/9-5

MSRCID[0:1]

Memory debug source

port ID 0–1

Debug

cfg_mem_debug

cfg_ddr_debug

9-6/9-10

MSRCID[2:4]

Memory debug source

port ID 2–4

Debug

—

20-2/20-6

MSYNC_IN,

MSYNC_OUT

DDR DLL

synchronization in/out

DDR memory

—

I/O

9-4/9-8

MWE

DDR write enable

DDR memory

—

9-3/9-5

PCI_ACK64

PCI acknowledge 64

PCI/X

—

I/O

16-2/16-8

PCI_AD[63:0]

PCI address/data

PCI/X

—

I/O

16-2/16-8

PCI_C/BE[7:0]

PCI command/byte

enable

PCI/X

—

I/O

16-2/16-8

PCI_DEVSEL

PCI device select

PCI/X

—

I/O

16-2/16-8

PCI_FRAME

PCI frame

PCI/X

—

I/O

16-2/16-8

PCI_GNT0

PCI grant 0

PCI/X

—

I/O

16-2/16-8

Table 3-2. MPC8540 Alphabetical Signal Reference (continued)

Name

Description

Functional

Block

Alternate

Function(s)

No. of

Signals

I/O

Table/

Page

MPC8540 датащи(PDF) 180 Page - Freescale Semiconductor, Inc

MPC8540 датащи(HTML) 180 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL