EP9312-CB Cirrus Logic Inc, EP9312-CB Datasheet - Page 658

• Manufacturer Part Number: EP9312-CB
• Description: System-on-Chip Processor
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9312-CB

• Peak Reflow Compatible (260 C): No
• A/d Converter: 12 Bits
• Leaded Process Compatible: No
• No. Of I/o Pins: 65
• Package / Case: 352-BGA
• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, SPI, UART/USART, USB
• Peripherals: AC'97, DMA, I&sup2: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
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1257

21
21-2
I
EP93xx User’s Guide
21.2 I
2
S Controller
The primary I
SSP pins or the Ac97 pins. The second and third I
primary I
second I
EGPIO[5] respectively and are enabled by setting DeviceCfg.A1onG. The third I
serial output and serial input pins are multiplexed with EGPIO[6] and EGPIO[13] respectively
and are enabled by setting DeviceCfg.A2onG.
Each I
can operate in master or slave mode. Data is transferred between the ARM Core and the I
controller via an interrupt based mechanism or DMA access. The ARM Core or host
processor must write words in multiples of 2 (that is, a left and right stereo pair). These words
are serially shifted out, timed with respect to the audio bit clock and word clock (SCLK and
LRCK) that are generated (see
The key features of the I
2
• Three transmit data channels, master or slave mode.
S Transmitter Channel Overview
2
S TX channel provides a single stereo I
2
2
S port's serial output and serial input pins are multiplexed with EGPIO[4] and
S port, but their serial output and input pins are multiplexed with EGPIO pins. The
ABITCLK
SSPRX1
SSPTX1
SFRM1
ASYNC
SCLK1
ARSTn
Name
ASDO
ASDI
Pin
2
Signal Name
S port and the I
sdo0
sdo1
sdo2
sdi0
sdi1
sdi2
lrck
sck
AC'97 Serial Output
AC'97 Frame Clock
Pin Description
AC'97 Serial Input
SPI Serial Output
SPI Frame Clock
Normal Mode
SPI Serial Input
AC'97 Bit Clock
2
Table 21-1. I
SPI Bit Clock
AC'97 Reset
S transmitter are:
Table 21-2. Audio Interfaces Pin Assignment
2
Copyright 2007 Cirrus Logic
S clocks are multiplexed and can be assigned to either the
Chapter
Type
OUT
OUT
OUT
IN
IN
IN
IN
IN
2
S Controller Input and Output Signals
5,
Left/right Word Audio slave clock.
Audio bit slave clock.
Serial data for channel 0
Serial data for channel 1
Serial data for channel 2
Serial data output for TX channel 0
Serial data output for TX channel 1
Serial data output for TX channel 2
“Clock Control” on page 5-4
(No I
I
AC'97 Serial Output
AC'97 Frame Clock
2
Pin Description
AC'97 Serial Input
I
S on SSP Mode
I
I
2
AC'97 Bit Clock
2
I
2
2
S Serial Output
S Frame Clock
S Serial Clock
AC'97 Reset
S Serial Input
2
2
S Master Clock)
S compliant output. The Transmit channel
2
S ports use the same clock pins as the
Description
I
2
S on AC'97 Mode
Pin Description
SPI Serial Output
SPI Frame Clock
I
I
I
I
SPI Serial Input
2
2
2
I
2
S Master Clock
2
S Serial Output
SPI Bit Clock
S Frame Clock
S Serial Clock
S Serial Input
for additional details).
2
S port's
DS785UM1
2
S