Switched Central Resource (SCR)
BOOT ROM
256KB L2 RAM
32KB
L1 RAM
32KB
L1 Pgm
16KB
I-Cache
16KB
D-Cache
AET
4KB ETB
C674x
DSP CPU
ARM926EJ-S CPU
With MMU
DSP Subsystem
ARM Subsystem
JTAG Interface
System Control
Input
Clock(s)
64KB ROM
8KB RAM
(Vector Table)
Power/Sleep
Controller
Memory
Protection
Pin
Multiplexing
RTC/
32-kHz
OSC
PLL/Clock
Generator
w/OSC
General-
Purpose
Timer
General-
Purpose
Timer
(Watchdog)
Serial Interfaces
I C
(2)
2
SPI
(2)
UART
(3)
Audio Ports
McASP
w/FIFO
(3)
DMA
Peripherals
Display
Internal Memory
LCD
Ctlr
128KB
RAM
External Memory Interfaces
Connectivity
EDMA3
Control Timers
eHRPWM
(3)
eCAP
(3)
eQEP
(2)
(10/100)
EMAC
(RMII)
MDIO
USB1.1
OHCI Ctlr
PHY
USB2.0
OTG Ctlr
PHY
HPI
MMC/SD
(8b)
EMIFA(8b/16B)
NAND/Flash
16b SDRAM
EMIFB
SDRAM Only
(16b/32b)
GPIO
PRU
Subsystem
OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
www.ti.com
1.4
Functional Block Diagram
Note: Not all peripherals are available at the same time due to multiplexing.
Figure 1-1. OMAP-L137 Functional Block Diagram
4
OMAP-L137 Low-Power Applications Processor
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