Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédente | ||
back2root:ibm-pc-ms-dos:hardware:8042 [2022/12/29 16:48] – [8042 - Speaker Controller (AT,PS/2) - Port 61h] frater | back2root:ibm-pc-ms-dos:hardware:8042 [2023/01/05 03:12] (Version actuelle) – [Keyboard Responses to System (read port 60h)] frater | ||
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Ligne 54: | Ligne 54: | ||
- | < | + | < |
command F7h through FDh are NOP's on the AT and are ACK'ed but not acted upon | command F7h through FDh are NOP's on the AT and are ACK'ed but not acted upon | ||
</ | </ | ||
Ligne 60: | Ligne 60: | ||
see [[back2root: | see [[back2root: | ||
- | ===== 8042 - Speaker Controller (AT,PS/2) - Port 61h ===== | + | ===== 8042 - Speaker Controller |
This register can be Write and Read | This register can be Write and Read | ||
- | The speaker itself has two possible positions, | + | ^ bit ^ Description |
+ | | 0 | PIT Channel 2 enabled (see [[back2root: | ||
+ | | 1 | Speaker Position\\ < | ||
+ | | 2 | | | ||
+ | | 3 | | | ||
+ | | 4 | | | ||
+ | | 5 | | | ||
+ | | 6 | | | ||
+ | | 7 | Reset Keyboard status (scan code readed) | ||
- | ^ bit ^ Description | + | === Speaker === |
- | | 0 | | | + | The speaker itself has two possible positions, |
- | | 1 | Speaker Position\\ < | + | |
- | | 2 | | | + | |
- | | 3 | | | + | |
- | | 4 | | | + | |
- | | 5 | | | + | |
- | | 6 | | | + | |
- | | 7 | | | + | |
This position can be set through bit 1 of port 0x61 on the Keyboard Controller. | This position can be set through bit 1 of port 0x61 on the Keyboard Controller. |