GFX Subsystem
THALIAIRQ
MPU Subsystem
Interrupts
CORECLK
PRCM
Master
Slave
L3 Fast
Interconnect
L3 Fast
Interconnect
MEMCLK
SYSCLK
/1, /2
pd_gfx_gfx_fclk
pd_gfx_gfx_l3_gclk
PER_CLKOUTM2
(192 MHz)
CORE_CLKOUTM4
(200 MHz)
1
0
Integration
5.2
Integration
Figure 5-1. SGX530 Integration
5.2.1 SGX530 Connectivity Attributes
The general connectivity attributes of the SGX530 are shown in the following table.
Table 5-1. SGX530 Connectivity Attributes
Attributes
Type
Power domain
GFX Domain
Clock domain
SGX_CLK
Reset signals
SGX_RST
Idle/Wakeup signals
Smart Idle
Initiator Standby
Interrupt request
THALIAIRQ (GFXINT) to MPU Subsystem
DMA request
None
Physical address
L3 Fast slave port
5.2.2 SGX530 Clock and Reset Management
The SGX530 uses separate functional and interface clocks. The SYSCLK is the clock for the slave
interface and runs at the L3F frequency. The MEMCLK is the clock for the memories and master interface
and also runs at the L3F frequency. The CORECLK is the functional clock. It can be sourced from either
the L3F clock (CORE_CLKOUTM4) or from the 192 MHz PER_CLKOUTM2 and can optionally be divided
by 2.
Table 5-2. SGX530 Clock Signals
Clock signal
Max Freq
Reference / Source
Comments
SYSCLK
200 MHz
CORE_CLKOUTM4
pd_gfx_gfx_l3_gclk
Interface clock
From PRCM
MEMCLK
200 MHz
CORE_CLKOUTM4
pd_gfx_gfx_l3_gclk
Memory Clock
From PRCM
CORECLK
200 MHz
PER_CLKOUTM2 or
pd_gfx_gfx_fclk
Functional clock
CORE_CLKOUTM4
From PRCM
182 Graphics Accelerator (SGX)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated