Visible to Intel only — GUID: zhv1646385173176
Ixiasoft
Visible to Intel only — GUID: zhv1646385173176
Ixiasoft
A.1. System Management
Two MAX® 10 FPGAs (10M16SCU324C8G) are used for system management. System MAX® 10 acts as a system controller. It handles the FPGA Avalon® -ST configuration, I2C bus access, fan speed control, and system reset functions. The UB2/PWR MAX® 10 acts as the Power Manager and on-board JTAG controller. Refer to the following description for each function:
- Power management: Control systems and FPGA power-up and optional power-down sequence (PDS), supervise power regulators/switches status and manage power faults, supervise temperature analog-to-digital converter (ADC) interrupt signals and manage temperature faults.
- JTAG controller: Manage the JTAG chain topology, JTAG master source and JTAG slaves using S19/S20.
Schematic Signal Name | Description |
---|---|
EXT_JTAG_TCK/TDO/TMS/TDI | JTAG header J11 for Intel® FPGA Download Cable |
FX2_Dp/n | Input port J10 for on-board Intel® download circuit |
HPS_GPIO[32:35] | Mictor 38-pin header on the OOBE daughter card |
Agilex™ 7 HPS JTAG can be accessed from either SDM dedicated JTAG pins or HPS dedicated I/Os. When it is accessed from SDM JTAG pins (FPGA_JTAG_TCK/TDO/TMS/TDI), SDM is chained with HPS inside FPGA. When it is accessed from HPS dedicated I/Os (HPS_GPIO[32:35]), HPS is chained externally by PCB traces.
Mode | S20 [4:2] | S19 [4] [3] [2] [1] ON: Bypass from chain OFF: Enable in chain |
Function |
---|---|---|---|
000 | ON/ON/ON (Default) |
S19.1 (SDM+HPS) S19.2 (System MAX® 10) S19.3 (FMC_B) S19.4 (FMC_A) |
Mode 1: On-board Intel® download circuit act as the only JTAG Master. Chained HPS with SDM nodes internally. Mode 3: External Intel® FPGA Download Cable act as the only JTAG Master. Chained HPS with SDM nodes internally. |
001 | ON/ON/OFF | SDM is always enabled in the JTAG chain. S19.1 (HPS) S19.2 (System MAX® 10) S19.3 (FMC_B) S19.4 (FMC_A) |
Mode 2: On-board Intel® download circuit act as the only JTAG Master. Chained HPS with SDM nodes externally. Mode 4: External Intel® FPGA Download Cable act as the only JTAG Master. Chained HPS with SDM node externally. |
100 | OFF/ON/ON | S19.1 (SDM) S19.2 (System MAX® 10) S19.3 (FMC_B) S19.4 (FMC_A) |
Mode 7: Both on-board Intel® download circuit and OOBE act as JTAG Masters. Separated HPS and SDM JTAG chains, OOBE only drive HPS. Mode 8: Both external Intel® FPGA Download Cable and OOBE JTAG act as JTAG Masters. Separated HPS and SDM JTAG chains, OOBE only drive HPS. |
Others | N/A | N/A | Reserved |