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參數(shù)資料
| 型號(hào)： | MC68EN360EM25 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 7 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP240 |
| 封裝： | PLASTIC, QFP-240 |
| 文件頁數(shù)： | 11/14頁 |
| 文件大?。?/td> | 47K |
| 代理商： | MC68EN360EM25 |
6
MC68360 PRODUCT INFORMATION
MOTOROLA
The four general-purpose timers on the QUICC are functionally similar to the two general-purpose timers
found on the MC68302. However, they offer some minor enhancements, such as the internal cascading of
two timers to form a 32-bit timer. The QUICC also contains a periodic interval timer in the SIM60, bringing the
total to five on-chip timers.
Upgrading Designs from the MC68302
Since the QUICC is a next-generation MC68302, many designers currently using the MC68302 may wish to
use the QUICC in a follow-on design. The following paragraphs briefly discuss this endeavor in terms of
architectural approach, hardware issues, and software issues.
Architectural Approach
The QUICC is the logical extension of the MC68302, but the overall architecture and philosophy of the
MC68302 design remains intact in the QUICC. The QUICC keeps the best features of the MC68302, while
making the changes required to provide for the increased flexibility, integration, and performance requested
by customers. Because the CPM is probably the most difficult module to learn, anyone who has used the
MC68302 can easily become familiar with the QUICC since the CPM architectural approach remains intact.
The most significant architectural change made on the QUICC was the translation of the design into the
standard M68300 family IMB architecture, resulting in a faster CPU and different system integration features.
Although the features of the SIM60 do not exactly correspond to those of the MC68302 SIM, they are very
similar. The QUICC SIM60 combines the best MC68302 SIM features with the best MC68340 SIM features
for improved performance.
Because of the similarity of the QUICC SIM60 and CPU to other members of the M68300 family, such as the
MC68332 and the MC68340, previous users of these devices will be comfortable with these same features
on the QUICC.
Hardware Compatibility Issues
The following list summarizes the hardware differences between the MC68302 and the QUICC:
Pinout—The pinout is not the same. The QUICC has 240 pins; the MC68302 has 132 pins.
Package—Both devices offer PGA and PQFP packages. However, the QUICC
PQFP package has a 20-mil pitch; whereas, the MC68302 PQFP package has a
25-mil pitch.
System Bus—The system bus signals now look like those of the MC68030 as opposed to those of the
M68000. It is still possible to interface M68000 peripherals to the QUICC, utilizing the same techniques
used to interface them to an MC68020 or MC68030.
System Bus in Slave Mode—A number of QUICC pins take on new functionality in slave mode to
support an external MC68EC040. On the MC68302, the pin names generally remained the same in
slave mode.
Peripheral Timing—The external timings of the peripherals (SCCs, timers, etc.) are very similar (if not
identical) to corresponding peripherals on the MC68302.
Pin Assignments—The assignment of peripheral functions to I/O pins is different in several ways. First,
the QUICC contains more general-purpose parallel I/O pins than the MC68302. However, the QUICC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68EN360FE33 | RISC MICROCONTROLLER, CQFP240 |
| MC68360RC25 | RISC MICROCONTROLLER, CPGA241 |
| MC68EN360RC25 | RISC MICROCONTROLLER, CPGA241 |
| MC68360FE25 | 32-BIT, 25 MHz, RISC PROCESSOR, CQFP240 |
| MC68360CFE25 | RISC MICROCONTROLLER, CQFP240 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68EN360EM25C | 制造商:Motorola Inc 功能描述: |
| MC68EN360EM25K | 制造商:Motorola Inc 功能描述:68EN360EM25K |
| MC68EN360EM25L | 功能描述:IC MPU QUICC W/ETHERNET 240FQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68EN360EM25VL | 功能描述:IC MPU QUICC W/ETHERNET 240-FQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68EN360EM33K | 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:68EN360EM33K |
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