收藏本站
参数资料
型号： R5F562N8ADFP#V0
厂商： Renesas Electronics America
文件页数： 120/148页
文件大小： 0K
描述： MCU 32BIT FLASH 512KROM 100LQFP
产品培训模块： RX Compare Match Timer
RX DMAC
标准包装： 1
系列： RX600
核心处理器： RX
芯体尺寸： 32-位
速度： 100MHz
连通性： EBI/EMI，I²C，SCI，SPI，USB
外围设备： DMA，LVD，POR，PWM，WDT
输入/输出数： 72
程序存储器容量： 512KB（512K x 8）
程序存储器类型： 闪存
RAM 容量： 96K x 8
电压 - 电源 (Vcc/Vdd)： 2.7 V ~ 3.6 V
数据转换器： A/D 8x10/12b，D/A 1x10b
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 100-LQFP
包装： 托盘
2004 Microchip Technology Inc.
DS39609B-page 71
PIC18F6520/8520/6620/8620/6720/8720
6.0
EXTERNAL MEMORY
INTERFACE
The External Memory Interface is a feature of the
PIC18F8X20 devices that allows the controller to
access external memory devices (such as Flash,
EPROM, SRAM, etc.) as program or data memory.
The physical implementation of the interface uses 27
pins. These pins are reserved for external address/data
bus functions; they are multiplexed with I/O port pins on
four ports. Three I/O ports are multiplexed with the
address/data bus, while the fourth port is multiplexed
with the bus control signals. The I/O port functions are
enabled when the EBDIS bit in the MEMCON register
is set (see Register 6-1). A list of the multiplexed pins
and their functions is provided in Table 6-1.
As implemented in the PIC18F8X20 devices, the
interface operates in a similar manner to the external
memory interface introduced on PIC18C601/801
microcontrollers. The most notable difference is that
the interface on PIC18F8X20 devices only operates in
16-bit modes. The 8-bit mode is not supported.
For a more complete discussion of the operating modes
that use the external memory interface, refer to
Section 4.1.1
“PIC18F8X20
Program
Memory
Modes”.
6.1
Program Memory Modes and the
External Memory Interface
As previously noted, PIC18F8X20 controllers are
capable of operating in any one of four program
memory modes, using combinations of on-chip and
external program memory. The functions of the multi-
plexed port pins depend on the program memory
mode selected, as well as the setting of the EBDIS bit.
In Microprocessor Mode, the external bus is always
active and the port pins have only the external bus
function.
In Microcontroller Mode, the bus is not active and
the pins have their port functions only. Writes to the
MEMCOM register are not permitted.
In Microprocessor with Boot Block or Extended
Microcontroller Mode, the external program memory
bus shares I/O port functions on the pins. When the
device is fetching or doing table read/table write
operations on the external program memory space, the
pins will have the external bus function. If the device is
fetching and accessing internal program memory loca-
tions only, the EBDIS control bit will change the pins
from external memory to I/O port functions. When
EBDIS = 0, the pins function as the external bus.
When EBDIS = 1, the pins function as I/O ports.
REGISTER 6-1:
MEMCON REGISTER
Note:
The External Memory Interface is not
implemented on PIC18F6X20 (64-pin)
devices.
Note:
Maximum FOSC for the PIC18FX520 is
limited to 25 MHz when using the external
memory interface.
R/W-0
U-0
R/W-0
U-0
R/W-0
EBDIS
—WAIT1
WAIT0
—
—WM1
WM0
bit7
bit0
bit 7
EBDIS: External Bus Disable bit
1
= External system bus disabled, all external bus drivers are mapped as I/O ports
0
= External system bus enabled and I/O ports are disabled
bit 6
Unimplemented: Read as ‘0’
bit 5-4
WAIT<1:0>: Table Reads and Writes Bus Cycle Wait Count bits
11
= Table reads and writes will wait 0 TCY
10
= Table reads and writes will wait 1 TCY
01
= Table reads and writes will wait 2 TCY
00
= Table reads and writes will wait 3 TCY
bit 3-2
Unimplemented: Read as ‘0’
bit 1-0
WM<1:0>: TBLWRT Operation with 16-bit Bus bits
1x
= Word Write mode: TABLAT<0> and TABLAT<1> word output, WRH active when
TABLAT<1> written
01
= Byte Select mode: TABLAT data copied on both MSB and LSB, WRH and (UB or LB)
will activate
00
= Byte Write mode: TABLAT data copied on both MSB and LSB, WRH or WRL will activate
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
相关PDF资料
PDF描述
VI-J3X-IZ-B1 CONVERTER MOD DC/DC 5.2V 25W
VI-BVK-IX-F2 CONVERTER MOD DC/DC 40V 75W
VI-J3X-IY-F3 CONVERTER MOD DC/DC 5.2V 50W
VI-BVK-IX-F1 CONVERTER MOD DC/DC 40V 75W
R5F56217BDBG#U0 MCU 32BIT FLASH 384KROM 176LFBGA
相关代理商/技术参数
参数描述
R5F562N8ADLE 制造商:Renesas Electronics Corporation 功能描述:MCU 32BIT RX62N 145LGA 制造商:Renesas Electronics Corporation 功能描述:MCU, 32BIT, RX62N, 145LGA 制造商:Renesas Electronics Corporation 功能描述:MCU, 32BIT, RX62N, 145LGA, Controller Family/Series:RX600, Core Size:32bit, No. of I/O's:103, Supply Voltage Min:2.7V, Supply Voltage Max:3.6V, Digital IC Case Style:LGA, No. of Pins:145, Program Memory Size:512KB, RAM Memory , RoHS Compliant: Yes
R5F562N8ADLE#U0 功能描述:MCU 32BIT FLASH 512KROM 145TFLGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:RX600 标准包装:1 系列:87C 核心处理器:MCS 51 芯体尺寸:8-位 速度:16MHz 连通性:SIO 外围设备:- 输入/输出数:32 程序存储器容量:8KB（8K x 8） 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4 V ~ 6 V 数据转换器:- 振荡器型:外部 工作温度:0°C ~ 70°C 封装/外壳:44-DIP 包装:管件 其它名称:864285
R5F562N8BDBG 制造商:Renesas Electronics Corporation 功能描述:MCU 32BIT RX62N 176BGA 制造商:Renesas Electronics Corporation 功能描述:MCU, 32BIT, RX62N, 176BGA 制造商:Renesas Electronics Corporation 功能描述:MCU, 32BIT, RX62N, 176BGA, Controller Family/Series:RX600, Core Size:32bit, No. of I/O's:126, Supply Voltage Min:2.7V, Supply Voltage Max:3.6V, Digital IC Case Style:LFBGA, No. of Pins:176, Program Memory Size:512KB, RAM Memory , RoHS Compliant: Yes
R5F562N8BDBG#U0 功能描述:MCU 32BIT FLASH 512K ROM 176BGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:RX600 标准包装:1 系列:87C 核心处理器:MCS 51 芯体尺寸:8-位 速度:16MHz 连通性:SIO 外围设备:- 输入/输出数:32 程序存储器容量:8KB（8K x 8） 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4 V ~ 6 V 数据转换器:- 振荡器型:外部 工作温度:0°C ~ 70°C 封装/外壳:44-DIP 包装:管件 其它名称:864285
R5F562N8BDFB 制造商:Renesas Electronics Corporation 功能描述:MCU 32BIT RX62N 144QFP
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*