EP9312-CBZ Cirrus Logic Inc, EP9312-CBZ Datasheet - Page 563
![IC ARM9 SOC UNIVERSAL 352PBGA](/photos/12/23/122390/mfg_ep9312_series_sml.jpg)
EP9312-CBZ
Manufacturer Part Number
EP9312-CBZ
Description
IC ARM9 SOC UNIVERSAL 352PBGA
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9312-CBZ
Core Size
16/32-Bit
Core Processor
ARM9
Speed
200MHz
Connectivity
EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, 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
0°C ~ 70°C
Package / Case
352-BGA
Controller Family/series
(ARM9)
No. Of I/o's
16
Ram Memory Size
16MB
Cpu Speed
200MHz
No. Of Timers
4
No. Of Pwm Channels
2
Digital Ic Case Style
BGA
Embedded Interface Type
AC97, I2S, SPI, UART, USB
Rohs Compliant
Yes
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
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
598-1258
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Manufacturer
Quantity
Price
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DS785UM1
15.2.4 Enabling Infrared (Ir) Modes
15.3.1 Clocking Requirements
15.3 UART2 Package Dependency
UART2 uses package pins RXD1 and TXD1. Pin RXD1 drives both the UART2 UART input
and the UART2 SIR input.
However, Syscon register DeviceCfg[28] (IonU2) controls what drives pin TXD1. See
Table
Therefore, to use any IrDA mode, FIR, MIR or SIR, set IonU2. To use UART2 as a UART,
clear IonU2.
There are two clocks, PCLK and UARTCLK.
UARTCLK frequency must accommodate the desired range of baud rates:
The frequency of UARTCLK must also be within the required error limits for all baud rates to
be used.
To allow sufficient time to write the received data to the receive FIFO, UARTCLK must be less
than or equal to four times the frequency of PCLK:
Disabled
UART2
15-2.
Mode
MIR
SIR
FIR
IonU2
0
1
DeviceCfg Register
U2EN
Fuartclk(min) >= 32 x baud_rate(max)
Fuartclk(max) <= 32 x 65,536 x baud_rate(min)
0
1
1
x
x
IonU2
Table 15-1. UART2 / IrDA Modes
Table 15-2. IonU2 Pin Function
UART2 UART is the output signal
Logical OR of IrDA output signal and UART2 SIR output signal
Copyright 2007 Cirrus Logic
0
1
1
1
x
SirEn
UART2Ctrl Register
0
0
1
0
0
Pin TXD1 Function
UARTE
0
1
1
0
0
IrEnable Register
EN[1]
0
0
0
1
1
EP93xx User’s Guide
EN[0]
0
0
1
0
1
UART2
15-5
15
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