EP9315-IB Cirrus Logic Inc, EP9315-IB Datasheet - Page 138
EP9315-IB
Manufacturer Part Number
EP9315-IB
Description
IC ARM920T MCU 200MHZ 352-PBGA
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9315-IB
Core Processor
ARM9
Core Size
16/32-Bit
Speed
200MHz
Connectivity
EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, PCMCIA, SPI, UART/USART, USB
Peripherals
AC'97, DMA, I²:S, LCD, LED, MaverickKey, POR, PWM, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 3.6 V
Data Converters
A/D 8x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
352-BGA
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
EDB9315A-Z
For Use With
598-1144 - KIT DEVELOPMENT EP9315 ARM9
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
No
Other names
598-1262
Available stocks
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Manufacturer
Quantity
Price
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5
5-12
5.1.6.2.3
5.1.6.2.4
5.1.6.2.5
System Controller
EP93xx User’s Guide
5.1.7 Interrupt Generation
set. One example of this is when a power-on-reset is applied and this register bit is cleared.
This means that this bit will not be set on boot-up and will have to be set to maintain the
memory image for when the device re-enters Standby mode.
A transition from Run mode to Halt mode is caused by reading the Halt register location
0x8093_0008 with the SHena bit set to 1. This has the effect of gating the CPU clock (FCLK)
bus interface, with the APB/AHB system clock, and Memory/DMA system remaining enabled.
There are normally several conditions in which the device can move from Standby mode to
Run mode.
These conditions are:
The EP93xx comes out of Standby if an interrupt occurs or when an exit from a ClkSet1 write
occurs. If a write is performed to the ClkSet1 register, the EP93xx then enters Standby mode
and then automatically comes out of Standby mode and back into the Run state.
The transition from the Halt state to the Run state is caused by:
The Syscon block generates two interrupts: TICK interrupt and Watchdog Expired interrupt.
The block generates the TICK interrupt based upon the 64 Hz clock, which is derived from
the 32.768 KHz oscillator. The interrupt becomes active on every rising edge of the internal
64 Hz clock. It can be cleared by writing to the TEOI location.
Watchdog Expired interrupt becomes active on a rising edge of the 64 Hz TICK clock, if the
TICK interrupt is still active. In other words, if a TICK interrupt has not been served for a
complete TICK period, a watchdog expired interrupt is generated. It can be cleared by writing
to the TEOI location as well.
• A falling edge on IRQ interrupt
• A falling edge on FIQ interrupt
• An exit from a
• PRSTn
• RSTOn
• A falling edge on IRQ interrupt
• A falling edge on FIQ interrupt
• RSTOn
RUN HALT mode
STANDBY RUN mode
HALT RUN mode
"ClkSet1"
write
Copyright 2007 Cirrus Logic
DS785UM1
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