Device
GPMC
L3 Slow
Interconnect
MPU Subsystem
EDMA
LCD_DATA11
LCD_DATA10
LCD_DATA8
LCD_DATA9
Control
Module
CONTROL_ST
A
TUS
SINTERRUPT
SYSBOOT[11]
SYSBOOT[10]
SYSBOOT[8]
SYSBOOT[9]
ADMUX
BW
WAITEN
CS0MuxDevice[1:0]
BootDeviceSize0
BootWaitEn
WaitSelectPin[1:0]
BootDeviceSize1
SDMAREQ_N
CLKRET
CLK
ADD[27:11]
ADD[10:0]
DATA[15:0]
CSn[6:0]
ADVn/ALE
OEn/REn
WEn
BE0n/CLE
BE1n
WPn
WAIT[1:0]
DIR2
DATA[31:16]
CS[7]
WAIT[3:2]
GPMC_CLK
GPMC_A[27:11]
GPMC_A[10:0]
GPMC_AD[15:0]
GPMC_CSn[6:0]
GPMC_ADVn_ALE
GPMC_OEn_REn
GPMC_WEn
GPMC_BEN0_CLE
GPMC_BEN1
GPMC_WPn
GPMC_WAIT[1:0]
GPMC_DIR
GPMC Pads
GPMC
7.1.2 Integration
An instantiation of GPMC provides this device with access to NAND Flash, NOR Flash, and other
asynchronous and synchronous interface peripherals.
shows the integration of the GPMC
module in this device.
Figure 7-2. GPMC Integration
7.1.2.1
GPMC Connectivity Attributes
The general connectivity attributes for the GPMC module are shown in
.
Table 7-2. GPMC Connectivity Attributes
Attributes
Type
Power Domain
Peripheral Domain
Clock Domain
PD_PER_L3S_GCLK
Reset Signals
PER_DOM_RST_N
Idle/Wakeup Signals
Smart Idle
Interrupt Requests
1 interrupt to MPU Subsystem (GPMCINT)
DMA Requests
1 DMA request to EDMA (GPMCEVT)
Physical Address
L3 Slow Slave Port
Memory and control register regions qualified with
MAddressSpace bit
7.1.2.2
GPMC Clock and Reset Management
The GPMC is a synchronous design and operates from the same clock as the Slow L3. All timings use
this clock as a reference.
Table 7-3. GPMC Clock Signals
Clock Signal
Max Freq
Reference / Source
Comments
prcm_gpmc_clk
100 MHz
CORE_CLKOUTM4 / 2
pd_per_l3s_gclk
Interface / Functional clock
From PRCM
254 Memory Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated