SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
This section describes the integration of the module in the device, including information about clocks, resets, and hardware requests.
Figure 9-2 shows the ISS integration.
For more information about the IDLE hardware handshake and wake-up request, see Module-Level Clock Management, in Power, Reset, and Clock Management.
This section gives an overview of typical uses of the module. For more information about the relationship of the power, reset, and clock management (PRCM) module to the ISS clocks and the reset settings, see the detailed functional description in Power, Reset, and Clock Management.
For more information about the device clocks and how they are handled by the PRCM module before going into the ISS, see section Clock Management Functional Description, in Power, Reset, and Clock Management.
The ISS also supports software reset. A software reset has the same function as a hardware reset, except that it does not reset the power-management protocols.
Table 9-1 through Table 9-3 summarize the integration of the module in the device.
Module Instance | Attributes | ||
Power Domain | Wake-Up Capability | Interconnect | |
ISS | PD_EVE3 | No | L3_MAIN |
Clocks | ||||
Module Instance | Destination Signal Name | Source Signal Name | Source | Description |
ISS | ISS_MAIN_FCLK | ISS_CLK (output of multiplexer) | PRCM | Functional clock for CAL_B, SIMCOP, ISP, and the interconnect (up to 532 MHz @ OPP_HIGH). For more information on supported OPPs and corresponding maximum clock frequencies, refer to device-specific Data Manual (DM). The source clock can be selected via CTRL_CORE_L3_INITIATOR_PRESSURE_7[1:0] ISS_CLK_MUX register bit-field in the device Control Module. |
Resets | ||||
Module -Instance | Destination Signal Name | Source Signal Name | Source | Description |
ISS | ISS_RST | EVE3_RST | PRCM | ISS global reset |
Interrupt Requests | ||||
Module Instance | Source Signal Name | Destination IRQ_CROSSBAR Input | Default Mapping | Description |
ISS | ISS_IRQ0 | IRQ_CROSSBAR_176 | - | This IRQ source signal is not mapped by default to any device INTC. |
ISS_IRQ1 | IRQ_CROSSBAR_177 | - | This IRQ source signal is not mapped by default to any device INTC. | |
ISS_IRQ2 | IRQ_CROSSBAR_178 | - | This IRQ source signal is not mapped by default to any device INTC. | |
ISS_IRQ3 | IRQ_CROSSBAR_179 | - | This IRQ source signal is not mapped by default to any device INTC. | |
ISS_IRQ4 | IRQ_CROSSBAR_180 | - | This IRQ source signal is not mapped by default to any device INTC. | |
ISS_IRQ5 | IRQ_CROSSBAR_181 | - | This IRQ source signal is not mapped by default to any device INTC. |
The “Default Mapping” column in Table 9-3
ISS Hardware Requests shows the default mapping of module IRQ source signals. These
module IRQ source signals
can also be mapped to other lines of each device Interrupt controller through the
IRQ_CROSSBAR .
For more information about
the IRQ_CROSSBAR module, see IRQ_CROSSBAR Module Functional Description,
in Control Module.
For more information
about the device interrupt controllers, see Interrupt Controllers.
.