SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
Start Address of General Capabilities is pointed by Pointer for UHS-II Host Capabilities Register.
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| Instance Name | Physical Address |
|---|---|
| MMCSD0 | 0FA0 0110h |
| 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 |
| RESERVED | |||||||
| NONE | |||||||
| 3E8h | |||||||
| 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 |
| CORECFG_UHS2_BUS_TOPLOGY | CORECFG_UHS2_MAX_DEVICES | DEVICE_TYPE | |||||
| R | R | R | |||||
| 0h | 1h | 0h | |||||
| 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 |
| RESERVED | CFG_64BIT_ADDRESSING | NUM_LANES | |||||
| NONE | R | R | |||||
| 0h | 1h | fh | |||||
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| GAP | DAP | ||||||
| R | R | ||||||
| 1h | 1h | ||||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:24 | RESERVED | NONE | 3E8h | Reserved |
| 23:22 | CORECFG_UHS2_BUS_TOPLOGY | R | 0h | This field indicates one of bus topologies configured by a Host system.
'00' P2P Connection
'01' Ring Connection
'10' HUB Connection
'11' HUB is connected in Ring
3 HUB is connected in Ring 2 HUB Connection 1 Ring Connection 0 P2P Connection |
| 21:18 | CORECFG_UHS2_MAX_DEVICES | R | 1h | This field indicates the maximum number of devices supported by the Host Controller.
0h - Not used
1h - 1 Devices
2h - 2 Devices
.....
.......
Fh - 15 Devices
15 15 Devices 2 2 Devices 1 1 Device 0 Not used |
| 17:16 | DEVICE_TYPE | R | 0h | This field indicates device type configured by a Host system. '00' Removable Card[P2P] '01' Embedded Devices '10' Embedded Devices+Removable Card '11' Reserved Reset Source: vbus_amod_g_rst_n |
| 15 | RESERVED | NONE | 0h | Reserved |
| 14 | CFG_64BIT_ADDRESSING | R | 1h | This field indicates support of 64-bit addressing by the Host Controller. '0' 32-bit Addressing is supported '1' 32-bit and 64-bit Addressing is supported Reset Source: vbus_amod_g_rst_n |
| 13:8 | NUM_LANES | R | fh | This field indicates support of lanes by the Host Controller.0 mean not supported and 1 means supported. D08 - 2L-HD D09 - 2D1U-FD D10 - 1D2U-FD D11 - 2D2U-FD D12 - Reserved D13 - Reserved Reset Source: vbus_amod_g_rst_n |
| 7:4 | GAP | R | 1h | This field indicates the maximum capability of host power supply for a group configured by a Host system.This field is used to set the argument of DEVICE_INIT CCMD 0h -Not used 1h - 360 mW 2h - 720 mW ..... ....... Fh - 360x15 mW Reset Source: vbus_amod_g_rst_n |
| 3:0 | DAP | R | 1h | This field indicates the maximum capability of host power supply for a device configured by a Host system.This field is used to set the argument of DEVICE_INIT CCMD 0h -360 mW [Default] 1h - 360 mW 2h - 720 mW ..... ....... Fh - 360 x15 mW Reset Source: vbus_amod_g_rst_n |