ZHCUD81 August 2025 F28E120SB , F28E120SC , TMS320F2800132 , TMS320F2800133 , TMS320F2800135 , TMS320F2800137 , TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1
表 3-19 简要介绍了针对 48 引脚 PT/PHP 和 32 引脚 RHB 封装的 F280013x、F280015x 和 F28E12x 之间模拟多路复用器的异同点。表 3-18 是此表的图例。
| 颜色 | 说明 |
|---|---|
| 所有三种器件共有的多路复用器功能 | |
| 仅适用于 F280013x 和 F280015x 的多路复用器功能 | |
| 仅适用于 F28E12x 的多路复用器功能 | |
| 仅适用于 F28E12x 和 F280015x 的多路复用器功能 |
| F28E12x、F280015x 和 F280013x 引脚名称 |
引脚/封装 | ADC | DAC | PGA | 比较器子系统（多路复用器） | AIO 输入/GPIO | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 48 QFP | 32 QFP | 32 QFN | A | C | 高 正 |
高 负 |
低 正 |
低 负 |
||||
| VREFHI | 12 | - | - | |||||||||
| VREFLO | 13 | - | - | |||||||||
| 模拟组 1 | CMP1 | |||||||||||
| A6 | 4 | 2 | 2 | A6 | PGA_INN2 | CMP1 (HPMXSEL=2) | CMP1 (LPMXSEL=2) | GPIO228 | ||||
| A2/C9 | 6 | 4 | 4 | A2 | C9 | CMP1 (HPMXSEL=0) | CMP1 (LPMXSEL=0) | GPIO224 | ||||
| A15/C7 | 7 | 5 | 5 | A15 | C7 | CMP1 (HPMXSEL=3) | CMP1 (HNMXSEL=0) | CMP1 (LPMXSEL=3) | CMP1 (LNMXSEL=0) | AIO233 | ||
| A11/C0 | 8 | 6 | 6 | A11 | C0 | PGA_INP1 | CMP1 (HPMXSEL=1) | CMP1 (HNMXSEL=1) | CMP1 (LPMXSEL=1) | CMP1 (LNMXSEL=1) | AIO237 | |
| A1 | 10 | 7 | 7 | A1 | CMP1 (HPMXSEL=4) | CMP1 (LPMXSEL=4) | AIO232 | |||||
| 模拟组 2 | CMP2 | |||||||||||
| A10/C10 | 21 | 13 | 13 | A10 | C10 | CMP2 (HPMXSEL=3) | CMP2 (HNMXSEL=0) | CMP2 (LPMXSEL=3) | CMP2 (LNMXSEL=0) | GPIO230 | ||
| 模拟组 3 | CMP3 | |||||||||||
| A3/C5 | 5 | 3 | 3 | A3 | C5 | CMP3 (HPMXSEL=3) | CMP3 (HNMXSEL=0) | CMP3 (LPMXSEL=3) | CMP3 (LNMXSEL=0) | GPIO242 | ||
| CMP3 (HPMXSEL=5) | CMP3 (LPMXSEL=5) | |||||||||||
| A14/C14 | 7 | 5 | 5 | A14 | C14 | PGA_INN1 | CMP3 (HPMXSEL=4) | CMP3 (LPMXSEL=4) | AIO239 | |||
| A5/C2 | 9 | 6 | 6 | A5 | C2 | CMP3 (HPMXSEL=1) | CMP3 (HNMXSEL=1) | CMP3 (LPMXSEL=1) | CMP3 (LNMXSEL=1) | |||
| CMP2 (HPMXSEL=5) | CMP2 (LPMXSEL=5) | |||||||||||
| A0//C15/COMPDACOUT | 11 | 7 | 7 | A0 | C15 | COMPDACOUT | CMP3 (HPMXSEL=2) | CMP3 (LPMXSEL=2) | AIO231 | |||
| 模拟组 4 | CMP4 | |||||||||||
| A7/C3 | 15 | 8 | 8 | A7 | C3 | CMP4 (HPMXSEL=1) | CMP4 (HNMXSEL=1) | CMP4 (LPMXSEL=1) | CMP4 (LNMXSEL=1) | AIO245 | ||
| 组合模拟组 2/4 | CMP2/4 | |||||||||||
| A12/C1 | 14 | 8 | 8 | A12 | C1 | PGA_INN3 | CMP2 (HPMXSEL=1) | CMP2 (HNMXSEL=1) | CMP2 (LPMXSEL=1) | CMP2 (LNMXSEL=1) | AIO238 | |
| CMP4 (HPMXSEL=2) | CMP4 (LPMXSEL=2) | |||||||||||
| A8/C11 | 16 | 9 | 9 | A8 | C11 | CMP2 (HPMXSEL=4) | CMP2 (LPMXSEL=4) | AIO241 | ||||
| CMP4 (HPMXSEL=4) | CMP4 (LPMXSEL=4) | |||||||||||
| A4/C14 | 19 | 12 | 12 | A4 | C14 | CMP2 (HPMXSEL=0) | CMP4 (HNMXSEL=0) | CMP2 (LPMXSEL=0) | CMP4 (LNMXSEL=0) | AIO225 | ||
| CMP4 (HPMXSEL=3) | CMP4 (LPMXSEL=3) | |||||||||||
| A9/C8 | 20 | 13 | 13 | A9 | C8 | CMP2 (HPMXSEL=2) | CMP2 (LPMXSEL=2) | GPIO227 | ||||
| CMP4 (HPMXSEL=0) | CMP4 (LPMXSEL=0) | |||||||||||
| 其他模拟 | ||||||||||||
| 温度传感器 | - | - | - | - | CMP2 (HPMXSEL=5) | |||||||
| A16/C16 | 2 | 32 | 32 | A16 | C16 | PGA1_INP2 | GPIO28 | |||||
| A19/C19 | 23 | - | - | A19 | C19 | GPIO13 | ||||||
| A20/C20 | 24 | - | - | A20 | C20 | GPIO12 | ||||||