SPRUJ91A april   2023  – may 2023 AM68 , AM68 , AM68A , AM68A , TDA4AL-Q1 , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VE-Q1 , TDA4VL-Q1 , TDA4VL-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Contributions to Power
  5. 2How to Use the Tool
  6. 3Use Case
    1. 3.1 Core Processor Utilization
    2. 3.2 Key IP Frequency Selection
    3. 3.3 Memory Interfaces
    4. 3.4 PHYs
    5. 3.5 High Speed Serial Interface
    6. 3.6 Environmental
    7. 3.7 LVCMOS IOs
    8. 3.8 Buttons
    9. 3.9 Starting Use Case
  7. 4Results Sheet
    1. 4.1 Thermal Power Estimate
    2. 4.2 Peak / PDN Power Estimate
  8. 5Three Specific Pre-Loaded Use Case Results
    1. 5.1 ARM Only
    2. 5.2 Superset
    3. 5.3 Valet Park
  9. 6Summary of Power for Pre-Populated Use Cases
  10. 7Revision History

5.1 ARM Only

A minimum use case for this class of processors relies upon using the A72 cores and the PCIe and ethernet switch; in this case, the A72 cores are reduced from 2 GHz to 1 GHz.

In this configuration, many of the power domains are disabled:

Table 5-3 ARM-Only Power Domain Status
Power Domain Status
PD_Pulsar_MCU ON
PD_A72_Cluster_0 ON
PD_A72_0 ON
PD_A72_1 ON
PD_C7_0 OFF
PD_C7_1 OFF
PD_Pulsar_0 OFF
PD_Pulsar_1 OFF
PD_GPUCOM OFF
PD_encode OFF
PD_VPAC OFF
PD_DMPAC OFF
The device loading is:
Table 5-4 ARM-Only Device Configuration
Description
UC_Description
Tj 125
VDD_CORE_SRAM_Voltage 0.85
VDD_CORE_Voltage 0.8
VDD_CPU_SRAM_Voltage 0.85
VDD_CPU_Voltage 0.76
VDD_MCU_SRAM_Voltage 0.85
VDD_MCU_Voltage 0.85
Process_Corner strong
A72 CPU 70% 1000
A72 CPU 70% 1000
Pulsar Main J7AEP 0% 1000
Pulsar Main J7AEP 0% 1000
C711 512k 1.1 0% 1000
C711 512k 1.1 0% 1000
MMA2 0% 1000
Pulsar MCU J7am 50% 1000
DSS7L_eDP_DSI J7AEP 0% 0
CSI_3RX_2TX 0% 0
DPHY 1.2 RX - 4L 0% 0
DPHY 1.2 RX - 4L 0% ulps
DPHY 1.2 TX - 4L 0% ulps
DPHY 1.2 TX - 4L 0% ulps
GPU BXS4-64-256KB DUST 0% 800
GPU BXS4-64-256KB Rascal 0% 800
GPU BXS4-64-256KB Wrap 0% 800
DMPAC J7AEP 0% 520
VPAC3 0% 720
WAVE521CL Video Codec 0% 600
CPSW2X eAVB 80% 0
Hyperlink x2 0% 0
PCIE_G3 4L J7AM 20% 0
USB3P0TCx1 J7AEP 0% 0
EMMC 4 J7AEP 0% 0
EMMC 8 J7AEP 10% 0
LPDDR4-32 EMIF J7AEP EW 35% 1067
lpddr4-32 IO 4267 39% lpddr4_4267_32
LPDDR4-32 EMIF J7AEP NS 0% 1067
lpddr4-32 IO 4267 0% sleep
SerDes 10G Common 100% 1pll
SerDes 10G Lane 20% 8g
SerDes 10G Lane 20% 8g
SerDes 10G Lane 20% 8g
SerDes 10G Lane 20% 8g
SDIO - 1 bit 0% off
Arasan HS400 8 bit 10% hs400
And the thermal power for the device is:
Table 5-5 ARM-Only Thermal Power
Tj Leakage [mW] Dynamic [mW] Total [mW]
125 4720 3950 8670
115 3480 3950 7430
105 2570 3950 6520
95 1900 3950 5850
85 1410 3950 5360
40 380 3950 4330
0 130 3950 4080
-40 60 3950 4010