參數(shù)資料
型號(hào)： MC68040
廠商： Motorola, Inc.
英文描述： Errata and Added Information to MC68360 Quad Integrated Communication Controller User Manual Rev 1
中文描述： 勘誤表和新增的資料MC68360四綜合通信控制器用戶手冊(cè)修訂1
文件頁(yè)數(shù)： 26/28頁(yè)
文件大?。?/td> 159K
代理商： MC68040
26
MC68360 USER’S MANUAL ERRATA
MOTOROLA
2. IMPORTANT DEBUGGING TIP
PLL loss-of-lock resets are no longer supported, and MUST be disabled.
Background:
The original release of the 68360 supported a feature whereby if loss of PLL lock was
detected, a hardware reset could be generated. This feature was enabled by setting a bit in
the CLKOCR (bit5; RSTEN). However, the circuits which detect loss-of-lock are hyper
sensitive, and sometimes cause hardware resets when PLL lock is not lost. As this feature
was problematic and provided little extra functionality, it was decided to no longer support
this feature. This change is included in Revision 1 of the 68360 User's Manual.
Problem symptoms:
Sporadic resets. After reset, bit 2 will be set in the RSR.
Recommended action:
For the purpose of robustness, we request that bit 5 in the CLKOCR (formerly known as
RSTEN) be set to zero, regardless of whether a problem is currently exhibited. This will help
safeguard against problems in the future. Clearing bit 5 in the CLKOCR will disable loss-of-
lock resets.
3. Phase Lock Loop.
The following section describes the performance guidelines for the on-chip phase locked
loop on the QUICC. The following explanations should be considered as general
observations on expected PLL behavior and should not be considered as specifications.
The parts are not tested to verify these exact numbers. These observations were measured
on a LIMITED number of parts and were not verified over the entire temperature and voltage
ranges.
4. Phase Skew Performance.
The phase skew of the PLL is defined as the time difference between the rising edges of
EXTAL and CLKO1/2 for a given capacitive load on CLKO1/2, over the entire process,
temperature and voltage ranges. This is defined in specifications 5B, 5C, and 5D (on page
10-7, Table 10.7). For input frequencies greater than 10MHZ and MF<=4, the skew is
between 0.0ns and less than 2.0ns (for rise time of 4ns), otherwise, this skew is not
guaranteed. However, for MF<10 and input frequencies greater than 10MHz, this skew is
between -3.0ns and +4.0ns.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料
PDF描述
MC68360 32-Bit Microprocessor(32位微處理器)
MC6840 Programmable Timer Module(PTM)
MC68440 Dual-Channel Direct Memory Access Controller
MC6845 MOS(N-Channel, Silicon-Gate)
MC68488 GENERAL PURPOSE INTERFACE ADAPTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68040FE25A 功能描述:微處理器 - MPU 32B W/ CACHE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68040FE25V 功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68040FE33A 功能描述:微處理器 - MPU 32B W/ CACHE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68040FE33V 功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68040FE40A 功能描述:微處理器 - MPU 32B W/ CACHE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*