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参数资料
| 型号： | MSM82C55A_2 |
| 厂商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Programmable Universal I/O Interface Device(可编程通用I/O接口器件) |
| 中文描述： | 可编程通用I / O接口设备（可编程通用的I / O接口器件） |
| 文件页数： | 10/26页 |
| 文件大小： | 168K |
| 代理商： | MSM82C55A_2 |
10/26
Semiconductor
MSM82C55A-2RS/GS/VJS
BASIC FUNCTIONAL DESCRIPTION
Group A and Group B
When setting a mode to a port having 24 bits, set it by dividing it into two groups of 12 bits each.
Group A: Port A (8 bits) and high order 4 bits of port C (PC
7
~PC
4
)
Group B:
Port B (8 bits) and low order 4 bits of port C (PC
3
~PC
0
)
Mode 0, 1, 2
There are 3 types of modes to be set by grouping as follows:
Mode 0: Basic input operation/output operation (Available for both groups A and B)
Mode 1: Strobe input operation/output operation (Available for both groups A and B)
Mode 2: Bidirectional bus operation (Available for group A only)
When used in mode 1 or mode 2, however, port C has bits to be defined as ports for control signal
for operation ports (port A for group A and port B for group B) of their respective groups.
Port A, B, C
The internal structure of 3 ports is as follows:
Port A: One 8-bit data output latch/buffer and one 8-bit data input latch
Port B: One 8-bit data input/output latch/buffer and one 8-bit data input buffer
Port C: One 8-bit data output latch/buffer and one 8-bit data input buffer (no latch for input)
Single bit set/reset function for port C
When port C is defined as an output port, it is possible to set (to turn to high level) or reset (to
turn to low level) any one of 8 bits individually without affecting other bits.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MSM82C55A-2G3-2K | 制造商:OKI Semiconductor 功能描述:MSM82C55A-2G3-2K CPU I/O EOL211209 |
| MSM82C55A-2GS | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:CMOS PROGRAMMABLE PERIPHERAL INTERFACE |
| MSM82C55A-2GS-2K | 制造商:ROHM Semiconductor 功能描述: 制造商:ROHM Semiconductor 功能描述:CMOS PROGRAMMABLE PERIPHERAL INTERFACE |
| MSM82C55A-2R3 | 制造商:OKI Semiconductor 功能描述:CPU I/O EOL211209 制造商:ROHM Semiconductor 功能描述: |
| MSM82C55A-2RS | 制造商:ROHM Semiconductor 功能描述: 制造商:OKI Semiconductor 功能描述:PERIPHERAL INTERFACE, 40 Pin, Plastic, DIP 制造商:ROHM Semiconductor 功能描述:CMOS PROGRAMMABLE PERIPHERAL INTERFACE |
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