- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371046 > MC68C912B32CFU8 (MOTOROLA INC) 16-Bit Microcontroller PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68C912B32CFU8 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁(yè)數(shù)： | 35/128頁(yè) |
| 文件大小： | 748K |
| 代理商： | MC68C912B32CFU8 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)當(dāng)前第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)
MC68HC912B32
MC68HC912B32TS/D
MOTOROLA
35
In special single-chip mode, the E clock is enabled as a timing reference and the other bits of port E are
configured for general-purpose I/O.
In normal expanded modes, the reset vector is located in external memory. The E clock may be required
for this access but R/W is only needed by the system when there are external writable resources. There-
fore in normal expanded modes, only the E clock is configured for its alternate bus control function and
the other bits of port E are configured for general-purpose I/O. If the normal expanded system needs
any other bus-control signals, PEAR would need to be written before any access that needed the addi-
tional signals.
In special expanded modes, IPIPE1, IPIPE0, E, R/W, and LSTRB are configured as bus-control signals.
In peripheral mode, the PEAR register is not accessible for reads or writes.
NDBE — No Data Bus Enable
Read and write anytime.
0 = PE7 is used for external control of data enables on memories.
1 = PE7 is used for general-purpose I/O.
PIPOE — Pipe Signal Output Enable
Normal: write once; Special: write anytime except the first time. Read anytime. This bit has no effect in
single chip modes.
0 = PE[6:5] are general-purpose I/O.
1 = PE[6:5] are outputs and indicate the state of the instruction queue.
NECLK — No External E Clock
In expanded modes, writes to this bit have no effect. E clock is required for de-multiplexing the external
address; NECLK will remain zero in expanded modes. NECLK can be written once in normal single-
chip mode and can be written anytime in special single chip mode. The bit can be read anytime.
0 = PE4 is the external E-clock pin subject to the following limitation: In single-chip modes, PE4 is
general-purpose I/O unless NECLK = 0 and either IVIS = 1 or ESTR = 0. A 16-bit write to
PEAR:MODE can configure all three bits in one operation.
1 = PE4 is a general-purpose I/O pin.
LSTRE — Low Strobe (LSTRB) Enable
Normal: write once; Special: write anytime except the first time. Read anytime. This bit has no effect in
single-chip modes or normal expanded narrow mode.
0 = PE3 is a general-purpose I/O pin.
1 = PE3 is configured as the LSTRB bus-control output, provided the MCU is not in single chip or
normal expanded narrow modes.
LSTRB is used during external writes. After reset in normal expanded mode, LSTRB is disabled. If
needed, it should be enabled before external writes. External reads do not normally need LSTRB be-
cause all 16 data bits can be driven even if the MCU only needs eight bits of data.
TAGLO is a shared function of the PE3/LSTRB pin. In special expanded modes with LSTRE set and the
BDM instruction tagging on, a zero at the falling edge of E tags the instruction word low byte being read
into the instruction queue.
RDWE — Read/Write Enable
Normal: write once; Special: write anytime except the first time. Read anytime. This bit has no effect in
single-chip modes.
0 = PE2 is a general-purpose I/O pin.
1 = PE2 is configured as the R/W pin. In single-chip modes, RDWE has no effect and PE2 is a gen-
eral-purpose I/O pin.
R/W is used for external writes. After reset in normal expanded mode, it is disabled. If needed it should
be enabled before any external writes.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68CK338 | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
| MC68EN360CFE25 | QUad Integrated Communications Controller Users Manual |
| MC68EN360FE25 | AC 4C 4#12 PIN PLUG 023 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68C912B32FU8 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:16-Bit Microcontroller |
| MC68CK16Z1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CAG16 | 功能描述:16位微控制器 - MCU 16BIT 1KRAM 32KHZ CRYSTAL RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MC68CK16Z1CAG16 | 制造商:Freescale Semiconductor 功能描述:Microcontroller |
| MC68CK16Z1CFC16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。