- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362742 > EP7212 (Cirrus Logic, Inc.) HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI) PDF資料下載
參數(shù)資料
| 型號(hào)： | EP7212 |
| 廠商： | Cirrus Logic, Inc. |
| 英文描述： | HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI) |
| 中文描述： | 高性能，低功耗系統(tǒng)與LCD控制器和數(shù)字音頻接口（DAI芯片） |
| 文件頁(yè)數(shù)： | 71/136頁(yè) |
| 文件大?。?/td> | 2289K |
| 代理商： | EP7212 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)當(dāng)前第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)
EP7212
DS474PP1
71
5.4
5.4.1
Memory Configuration Registers
MEMCFG1 Memory Configuration Register 1
ADDRESS: 0x8000.0180
Expansion and ROM space is selected by one of eight chip selects. One of the chip selects (nCS[6])
is used internally for the on-chip SRAM, and the configuration is hardwired for 32-bit-wide, minimum-
wait-state operation. nCS[7] is used for the on-chip Boot ROM and the configuration field is hardwired
for 8-bit-wide, minimum-wait-state operation. Data written to the configuration fields for either nCS[6]
or nCS7 will be ignored. Two of the chip selects (nCS[4:5]) can be used to access two CL-PS6700
PC CARD controller devices, and when either of these interfaces is enabled, the configuration field
for the appropriate chip select in the MEMCFG2 register is ignored. When the PC CARD1 or 2 control
bit in the SYSCON2 register is disabled, then nCS[4] and nCS[5] are active as normal and can be
programmed using the relevant fields of MEMCFG2, as for the other four chip selects. All of the six
external chip selects are active for 256 Mbytes and the timing and bus transfer width can be pro-
grammed individually. This is accomplished by programming the six-byte-wide fields contained in two
32-bit registers, MEMCFG1 and MEMCFG2. All bits in these registers are cleared by a system reset
(except for the nCS[6] and nCS[7] configurations).
The Memory Configuration Register 1 is a 32-bit read / write register which sets the configuration of
the four expansion and ROM selects nCS[0:3]. Each select is configured with a 1-byte field starting
with expansion select 0.
5.4.2
MEMCFG2 Memory Configuration Register 2
ADDRESS: 0x8000.01C0
The Memory Configuration Register 2 is a 32-bit read / write register which sets the configuration of
the two expansion and ROM selects nCS[4:5]. Each select is configured with a 1-byte field starting
with expansion select 4.
Each of the six non-reserved byte fields for chip select configuration in the memory configuration reg-
isters are identical and define the number of wait states, the bus width, enable EXPCLK output during
accesses and enable sequential mode access. This byte field is defined below. This arrangement ap-
plies to nCS[0:3], and nCS[4:5] when the PC CARD enable bits in the SYSCON2 register are not set.
The state of these bits is ignored for the Boot ROM and local SRAM fields in the MEMCFG2 register.
Table 37
defines the bus width field. Note that the effect of this field is dependent on the two BOOTBIT
bits that can be read in the SYSFLG1 register. All bits in the memory configuration register are cleared
by a system reset, and the state of the BOOTBIT bits are determined by Port E bits 0 and 1 on the
EP7212 during power-on reset. The state of PE[1] and PE[0] determine whether the EP7212 is going
to boot from either 32-bit-wide, 16-bit-wide or 8-bit-wide ROMs.
Table 38
shows the values for the wait states for random and sequential wait states at 13 and 18 MHz
bus rates. At 36 MHz bus rate, the encoding becomes more complex.
Table 39
preserves compati-
bility with the previous devices, while allowing the previously unused bit combinations to specify more
variations of random and sequential wait states.
31:24
23:16
15:8
7:0
nCS[3] configuration
nCS[2] configuration
nCS[1] configuration
nCS[0] configuration
31:24
23:16
15:8
7:0
(Boot ROM)
7
CLKENB
(Local SRAM)
6
SQAEN
nCS[5] configuration
5:2
Wait States Field
nCS[4] configuration
1:0
Bus width
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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) |
| EP7309 | HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE |
| EP7309-CB-C | CONN MODULAR JACK 8-8 R/A UNSHLD |
| EP7309-CR-C | HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EP7212-CB-A | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI) |
| EP7212-CV-A | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI) |
| EP7212-CV-D | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| EP7230 | 功能描述:電氣外殼配件 E-PANEL FITS 72 X 30 RoHS:否 制造商:Hammond Manufacturing 產(chǎn)品:Rack Accessories 類型: 面板寬度: 面板高度: 外部寬度: 外部高度: 外部深度: 顏色:Black |
| EP7236 | 功能描述:電氣外殼配件 E-PANEL FITS 72 X 36 RoHS:否 制造商:Hammond Manufacturing 產(chǎn)品:Rack Accessories 類型: 面板寬度: 面板高度: 外部寬度: 外部高度: 外部深度: 顏色:Black |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。