SCRATCH_0 (CPM4_ADDRREMAP) Register Description
| Register Name | SCRATCH_0 |
|---|---|
| Relative Address | 0x0000000020 |
| Absolute Address | 0x00FCF30020 (CPM4_ADDRREMAP) |
| Width | 32 |
| Type | rwNormal read/write |
| Reset Value | 0x00000000 |
| Description | Scratch pad register for software |
This register can be written by the tools for use with CCIX options and are then re-programmed by CCIX-DVSEC firmware to setup CCIX SAM to local address remap. Note: User should not change the values in this register. Note: Writes to this register have no impact. Alternate register name: ECO_1
SCRATCH_0 (CPM4_ADDRREMAP) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| ccix_mag_num | 31:9 | rwNormal read/write | 0x0 | Magic number for CCIX |
| num_credit_links | 8:7 | rwNormal read/write | 0x0 | Number of CCIX credit links(0-3) |
| ra1_enable | 6 | rwNormal read/write | 0x0 | Request Agent 1 is enabled 0: RA1 disabled 1: RA1 enabled |
| ra0_enable | 5 | rwNormal read/write | 0x0 | Request Agent 0 is enabled 0: RA0 disabled 1: RA0 enabled |
| agent_select | 4:3 | rwNormal read/write | 0x0 | Selected agent is HA/SA 0: No agent selected 1: HA 2: SA |
| paggenable | 2 | rwNormal read/write | 0x0 | Port Aggregation support 0: Port aggregation unsupported 1: Port aggregation supported |
| partial_cacheline_enable | 1 | rwNormal read/write | 0x0 | Partial Cacheline Support 0: Partial Cacheline unsupported 1: Partial Cacheline supported |
| l2_enable | 0 | rwNormal read/write | 0x0 | Request Agents L2 enable 0: L2 disabled 1: L2 enabled |