- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381014 > USING Using the Expanded Memory Mode with the M16C/62 PDF資料下載
參數(shù)資料
| 型號： | USING |
| 英文描述： | Using the Expanded Memory Mode with the M16C/62 |
| 中文描述： | 使用帶有擴(kuò)展內(nèi)存雙隨機(jī)PWM模式 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 831K |
| 代理商： | USING |
M16C/62
Using the Expanded Memory Mode with the M16C/62
Figure 1. Setting the Processor Mode Bits in ncrt0.a30
The bus settings and control signals can also be customized for different configurations. The external bus
width can be set to either 8 bits or 16 bits by connecting the BYTE pin to Vcc or Vss respectively. This
does not affect the internal bus, which is always fixed to 16 bits.
The read/write signal configurations are set in the processor mode register (PM0). There are two
combinations of R/W signals. For a 16-bit data bus, select between the RD, WR, and BHE signals or the
RD, WRL, and WRH signals. When using an 8-bit bus, always use the RD, WR, and BHE signals.
The chip select area used for the external memory must be enabled in the chip select register (CSR).
The chip select register determines if pins P4
4
to P4
7
output the chip select or if they are used as GPIO.
The chip select register also has bits that determine if a wait state should to be added to each individual
chip select area. See the specification for each specific microcontroller for exact chip select memory
ranges. Figure 2 is an example of a memory map for a microcontroller in expanded memory.
Figure 2. Example Memory Map with Chip Selects for Expanded Memory Mode
AN-DECE-MCU-18-A
September 2001
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| USR931 | 9.3 VOLT ULTRA STABLE TEMPERATURE COMPENSATED ZENER REFERENCE DIODES |
| USR932 | 9.3 VOLT ULTRA STABLE TEMPERATURE COMPENSATED ZENER REFERENCE DIODES |
| USR933 | 9.3 VOLT ULTRA STABLE TEMPERATURE COMPENSATED ZENER REFERENCE DIODES |
| USV1A470MFH | Aluminum Electrolytic Capacitor |
| USV0J101MFH | Aluminum Electrolytic Capacitor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USJ015PR3DXC05 | 功能描述:集管和線殼 USJ015PR3DXC30 = Strip RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
| USJ015PR3DXC15 | 功能描述:集管和線殼 USJ015PR3DXC15 = Strip RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
| USJ015PR3DXC2.5 | 功能描述:集管和線殼 USJ015PR3DXC2.5 = Strip RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
| USJ015PR3DXC30 | 功能描述:集管和線殼 USJ015PR3DXC60 = Strip RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
| USJ015PR3DXC60 | 功能描述:集管和線殼 USS004B4T=STRIP CON RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。