參數(shù)資料
型號： EP7211
廠商： Cirrus Logic, Inc.
英文描述： HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
中文描述： 高性能超低功耗系統(tǒng)與LCD控制器芯片
文件頁數(shù)： 75/166頁
文件大?。?/td> 2623K
代理商： EP7211
EP7211
High-Performance Ultra-Low-Power System-on-Chip with LCD Controller
75
Functional Description
DS352PP3
JUL 2001
specification defines the behavior of the internal EP7211 registers in the Big Endian mode in more
detail.
The NCAS[3:0] lines for DRAM should always be connected with the same byte lane irrespective
of the Endianness, such that NCAS[0] will be connected with D[7:0], and NCAS[3] with D[31:24].
Thus, in a Little Endian system, NCAS[0] will be asserted for a read/write to byte 0 of DRAM and
in a big Endian system NCAS[3] will be asserted to access byte 0 of DRAM.
NOTE:
dc = don
’
t care
Table 3-16. Effect of Endianness on Read Operations
Address
(W/B)
Data in
Memory
Byte Lanes to Memory/Ports/Registers
R0 Contents
Big Endian Memory
Little Endian Memory
7:0
15:8
23:1
6
31:2
4
7:0
15:8
23:1
6
31:2
4
Big
Endian
Little
Endian
Word + 0 (W)
11223344
44
33
22
11
44
33
22
11
11223344
11223344
Word + 1 (W)
11223344
44
33
22
11
44
33
22
11
44112233
44112233
Word + 2 (W)
11223344
44
33
22
11
44
33
22
11
33441122
33441122
Word + 3 (W)
11223344
44
33
22
11
44
33
22
11
22334411
22334411
Word + 0 (B)
11223344
dc
dc
dc
11
44
dc
dc
dc
00000011
00000044
Word + 1 (B)
11223344
dc
dc
22
dc
dc
33
dc
dc
00000022
00000033
Word + 2 (B)
11223344
dc
33
dc
dc
dc
dc
22
dc
00000033
00000022
Word + 3 (B)
11223344
44
dc
dc
dc
dc
dc
dc
11
00000044
00000011
Table 3-17. Effect of Endianness on Write Operations
Address
(W/B)
Register
Contents
Byte Lanes to Memory/Ports/Registers
Big Endian Memory
Little Endian Memory
7:0
15:8
23:16
31:24
7:0
15:8
23:16
31:24
Word + 0 (W)
11223344
44
33
22
11
44
33
22
11
Word + 1 (W)
11223344
44
33
22
11
44
33
22
11
Word + 2 (W)
11223344
44
33
22
11
44
33
22
11
Word + 3 (W)
11223344
44
33
22
11
44
33
22
11
Word + 0 (B)
11223344
44
44
44
44
44
44
44
44
Word + 1 (B)
11223344
44
44
44
44
44
44
44
44
Word + 2 (B)
11223344
44
44
44
44
44
44
44
44
Word + 3 (B)
11223344
44
44
44
44
44
44
44
44
相關(guān)PDF資料
PDF描述
EP7211-CP-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7211-CV-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7212 HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CB-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
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參數(shù)描述
EP7211(208LQFP) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC
EP7211(256PBGA) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC
EP7211-CB-D 制造商:Rochester Electronics LLC 功能描述:- Bulk
EP7211-CP-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7211-CV-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
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