The device has one Device Manager
located in WKUP domain. Device Manager is responsible for entry/exit to low power
modes. Also, Device Manager hosts RM/PM (Resource Manager/Power Manager) SYSFW code
for providing RM/PM services to HLOS. As part of boot, public ROM is executed over
Device Manager.
Device Manager Features
- Single Core Cortex-R5
subsystem
- ARMv7-R architecture
with following extensions
- Advanced SIMD
extension for integer and floating-point vector
operations
- Vector
Floating Point Version 3 (VFPv3)
- L1 memory
architecture
- 32KB I-cache
with 64-bit ECC error checking
- 32KB D-cache
with 64-bit ECC error checking
- 64Kbyte TCM(L2) with
32-bit ECC error checking
- 32-bit AXI3 initiator
interface for accessing local peripherals
- 1x RTI/WWDT
- 2x Timer
- 1x UART
- 1x I2C
- Wake-up logic
- Public ROM
- RTC digital
- VTM
- LFOSC
Note: PSC functions are controlled via
Device Manager. For more information how to use Device Manager, see
TISCI API available at ti.com.