參數(shù)資料
型號(hào): M30800MC-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機(jī)
文件頁(yè)數(shù): 28/317頁(yè)
文件大?。?/td> 4621K
代理商: M30800MC-XXXFP
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deveopmen
Bus Settings
Preliminary Specifications REV.D
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C/80 (100-pin version) group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
28
Bus Settings
The BYTE pin, bit 0 to 3 of the external data bus width control register (address 000B
16
), bits 4 and 5 of the
processor mode register 0 (address 0004
16
) and bit 0 and 1 of the processor mode register 1 (address
0005
16
) are used to change the bus settings.
Table 1.7.1 shows the factors used to change the bus settings, figure 1.7.1 shows external data bus width
control register and table 1.7.2 shows external area 0 to 3 and external area mode.
Bus setting
Switching factor
Switching external address bus width
Switching external data bus width
Switching between separate and multiplex bus
External data bus width control register
BYTE pin (external area 3 only)
Bits 4 and 5 of processor mode register 0
(1) Selecting external address bus width
You can select the width of the address bus output externally from the 16 Mbytes address space, the
number of chip select signals, and the address area of the chip select signals. (Note, however, that when
you select “Full CS space multiplex bus”, addresses A
0
to A
15
are output.) The combination of bits 0 and
1 of the processor mode register 1 allow you to set the external area mode.
When using DRAM controller, the DRAM area is output by multiplexing of the time splitting of the row and
column addresses.
(2) Selecting external data bus width
You can select 8-bit or 16-bit for the width of the external data bus for external areas 0, 1, 2, and 3. When
the data bus width bit of the external data bus width control register is “0”, the data bus width is 8 bits;
when “1”, it is 16 bits. The width can be set for each of the external areas. The default bus width for
external area 3 is 16 bits when the BYTE pin is “L” after a reset, or 8 bits when the BYTE pin is “H” after
a reset. The bus width selection is valid only for the external bus (the internal bus width is always 16 bits).
During operation, fix the level of the BYTE pin to “H” or “L”.
(3) Selecting separate/multiplex bus
The bus format can be set to multiplex or separate bus using bits 4 and 5 of the processor mode register 0.
Separate bus
In this bus configuration, input and output is performed on separate data and address buses. The data
bus width can be set to 8 bits or 16 bits using the external data bus width control register. For all
programmable external areas, P0 is the data bus when the external data bus is set to 8 bits, and P1 is
a programmable IO port. When the external data bus width is set to 16 bits for any of the external
areas, P0 and P1 (although P1 is undefined for any 8-bit bus areas) are the data bus.
When accessing memory using the separate bus configuration, you can select a software wait using
the wait control register.
Multiplex bus
In this bus configuration, data and addresses are input and output on a time-sharing basis. For areas
for which 8-bit has been selected using the external data bus width control register, the 8 bits D0 to D7
are multiplexed with the 8 bits A0 to A7. For areas for which 16-bit has been selected using the
external data bus width control register, the 16 bits D0 to D15 are multiplexed with the 16 bits A0 to
A15. When accessing memory using the multiplex bus configuration, two waits are inserted regard-
less of whether you select “No wait” or “1 wait’ in the appropriate bit of the wait control register.
Table 1.7.1. Factors for switching bus settings
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M30800MC-XXXGP 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30800MG-XXXFP 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30800MG-XXXGP 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30800SAFP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
M30800SAFP#D3 功能描述:MCU 3/5V 0K I-TEMP 100-QFP RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:M16C™ M32C/80/80 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設(shè)備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB(20K x 16) 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤(pán) 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323