EP9301-IQZ Cirrus Logic Inc, EP9301-IQZ Datasheet - Page 738
EP9301-IQZ
Manufacturer Part Number
EP9301-IQZ
Description
32-Bit Microcontroller IC
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9301-IQZ
Controller Family/series
(ARM9)
Core Size
32 Bit
A/d Converter
12 Bits
Supply Voltage
3.3V
No. Of I/o Pins
24
Mounting Type
Surface Mount
Operating Temperature Min
-40°C
Package / Case
208-LQFP
Core Processor
ARM9
Speed
166MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
Peripherals
AC'97, DMA, I²:S, LED, MaverickKey, POR, PWM, WDT
Number Of I /o
19
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 3.6 V
Data Converters
A/D 5x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Other names
598-1250
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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24
24-6
Pulse Width Modulator
EP93xx User’s Guide
Default:
Definition:
Bit Descriptions:
pwmout
PWM_INV = 0
pwmout
PWM_INV = 1
clk_pwm
0x0000_0000
PWMx Invert
RSVD:
INV:
t
1
t
off
on
PULSE 1
Figure 24-1. PWM_INV Example
Copyright 2007 Cirrus Logic
2
Reserved. Unknown During Read.
Invert PWM output
0 = Output is not inverted. PWMOUT will output t
then t
1 = Output is inverted. PWMOUT will output t
t
PWM_INV is double buffered to allow it to be programmed
statically (PWM is stopped) or dynamically (PWM is
running).
Programmed statically, the invert takes affect after the
APB write completes and CLK_PWM is running. After the
update, CLK_PWM can be turned off without affecting
PWMOUT. In this way, the PWM output can be inverted
without enabling the PWM.
Programmed dynamically, PWM_INV is updated at the
end of a PWM cycle to prevent any output glitches or
errors. Read/write accesses to PWM_INV will read/write
its buffer.
Figure 24-1
PWM_INV invert bit.
ON
t
t
off
on
, PWMxDutyCycle controls t
3
OFF
Duty Cycle =
Duty Cycle =
, PWMxDutyCycle controls t
4
provides an example of the effect of the
PULSE 2
t
t
on
off
/(t
/(t
5
on
on
+t
+t
off
off
)
)
6
OFF
7
PULSE 3
.
ON
8
OFF
9
ON
DS785UM1
first then
first
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