参数资料
| 型号： | CP80C86-2Z |
| 厂商： | Intersil |
| 文件页数： | 2/37页 |
| 文件大小： | 0K |
| 描述： | IC CPU 16BIT 5V 8MHZ 40-PDIP |
| 标准包装： | 9 |
| 处理器类型： | 80C86 16-位 |
| 速度： | 8MHz |
| 电压： | 4.5 ~ 5.5V |
| 安装类型： | 通孔 |
| 封装/外壳： | 40-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-DIP |
| 包装： | 管件 |
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10
FN2957.3
January 9, 2009
edge of this pulse, a valid address and certain status
information for the cycle may be latched.
Status bits S0, S1 and S2 are used by the bus controller, in
maximum mode, to identify the type of bus transaction
according to Table 2.
Status bits S3 through S7 are time multiplexed with high
order address bits and the BHE signal, and are therefore
valid during t2 through t4. S3 and S4 indicate which segment
register (see “Instruction Set Summary” on page 31) was
used for this bus cycle in forming the address, according to
Table 3.
S5 is a reflection of the PSW interrupt enable bit. S3 is
always zero and S7 is a spare status bit.
I/O Addressing
In the 80C86, I/O operations can address up to a maximum
of 64k I/O byte registers or 32k I/O word registers. The I/O
address appears in the same format as the memory address
on bus lines A15-A0. The address lines A19-A16 are zero in
I/O operations. The variable I/O instructions which use
register DX as a pointer have full address capability while
the direct I/O instructions directly address one or two of the
256 I/O byte locations in page 0 of the I/O address space.
I/O ports are addressed in the same manner as memory
locations. Even addressed bytes are transferred on the D7-D0
bus lines and odd addressed bytes on D15-D8. Care must be
taken to ensure that each register within an 8-bit peripheral
located on the lower portion of the bus be addressed as even.
TABLE 2.
S2
S1
S0
CHARACTERISTICS
0
Interrupt
001
Read I/O
010
Write I/O
011
Halt
1
0
Instruction Fetch
1
0
1
Read Data from Memory
1
0
Write Data to Memory
1
Passive (No Bus Cycle)
TABLE 3.
S4
S3
CHARACTERISTICS
0
Alternate Data (Extra Segment)
01
Stack
1
0
Code or None
11
Data
80C86
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| CP80C88 | 功能描述:微处理器 - MPU CPU 8/16BIT 5V 5MHZ 40PDIP COM RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
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