引脚 | P0.0 | P0.1 | P0.2 | P0.3 | P0.4 | P0.5 | P0.6 | P0.7 | P1 | P2 | P3 |
功能 | TX0 | RX0 | SDA | CL | TX1 | RX1 | INT0 | INT1 | 键盘 | 通用 | 通用 |
引脚 | P0 | P1 | P2 | P3 | |||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2~4 | 5 | 6~7 | |||
功能 | TX0 | RX0 | SDA | SCL | TX1 | ALE | RD | WR | RX1 | INT0 | 模拟输入 | INT1 | 通用 | 复用高地址 | 复用低地址/数据 |
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