參數(shù)資料
型號： ORT4622
英文描述： Field-Programmable System Chip (FPSC) Four-Channel x 622 Mbits/s Backplane Transceiver
中文描述： 現(xiàn)場可編程系統(tǒng)芯片（促進(jìn)文化基金）四通道x 622 Mbits /秒背板收發(fā)器
文件頁數(shù)： 37/90頁
文件大小： 1915K
代理商： ORT4622
Lucent Technologies Inc.
Lucent Technologies Inc.
37
Preliminary Data Sheet
March 2000
ORCA ORT4622 FPSC
Four-Channel x 622 Mbits/s Backplane Transceiver
FPGA Configuration Data Format
(continued)
Figure 11. Serial Configuration Data Format—Autoincrement Mode
Figure 12. Serial Configuration Data Format—Explicit Mode
Note: For slave parallel mode, the byte containing the preamble must be 11110010. The number of leading header dummy bits must
be (n
*
8) + 4, where n is any nonnegative integer and the number of trailing dummy bits must be (n
*
8), where n is any positive
integer. The number of stop bits/frame for slave parallel mode must be (x
*
8), where x is a positive integer. Note also that the bit
stream generator tool supplies a bit stream that is compatible with all configuration modes, including slave parallel mode.
Table 11. Configuration Frame Format and Contents
Header
11110010
Preamble.
Configuration frame length.
Trailing header—8 bits.
ID frame header.
00 = autoincrement, 01 = explicit.
Reserved bits set to 0.
20-bit part ID.
8-bit checksum.
Eight stop bits (high) to separate frames.
Data frame header.
Number of data bits depends upon device.
String of 0 bits added to bit stream to make frame header, plus
data bits reach a byte boundary.
8-bit checksum.
Eight stop bits (high) to separate frames.
Address frame header.
14-bit address of location to start data storage.
8-bit checksum.
Eight stop bits (high) to separate frames.
Postamble header.
Dummy address.
16 stop bits.
24-bit Length Count
11111111
0101 1111 1111 1111
Configuration Mode
Reserved [41:0]
ID
Checksum
11111111
01
Data Bits
ID Frame
Configuration
Data
Frame
(repeated for each
data frame)
Alignment Bits = 0
Checksum
11111111
00
14 Address Bits
Checksum
11111111
00
11111111 111111
1111111111111111
Configuration
Address
Frame
Postamble
5-5759(F)
CONFIGURATION DATA
CONFIGURATION DATA
1 0
0 1
0 1
PREAMBLE LENGTH
ID FRAME
CONFIGURATION
DATA FRAME 1
CONFIGURATION
DATA FRAME 2
POSTAMBLE
CONFIGURATION HEADER
0 0
0 0
COUNT
5-5760(F)
PREAMBLECOUNT
ID FRAME
CONFIGURATION
DATA FRAME 1
CONFIGURATION
DATA FRAME 2
POSTAMBLE
CONFIGURATION HEADER
ADDRESS
FRAME 1
ADDRESS
FRAME 2
0 0
CONFIGURATION DATA
CONFIGURATION DATA
1 0
0 1
0 1
0 0
0 0
0 0
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