EP9312-IB Cirrus Logic Inc, EP9312-IB Datasheet - Page 622

• Manufacturer Part Number: EP9312-IB
• Description: IC ARM920T MCU 200MHZ 352-PBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9312-IB

• 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: -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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1259

17
IrFlag
17-26
IrDA
EP93xx User’s Guide
31
15
Bit Descriptions:
Address:
Default:
Definition:
Bit Descriptions:
30
14
29
13
RSVD
28
12
address of all ones are broadcast frames, and are always matched regardless
of the value in the AMV. The AMV may be written at any time, allowing the
address match value to be changed during active receive operation.
RSVD:
AMV:
0x808B_008B - Read Only
0x0000_0000
IrDA Flag Register. Contains the nine read only flags which indicate the
current state of the IrDA Interface.
RSVD:
TBY:
RIF:
RSY:
EOF:
27
11
26
10
Copyright 2007 Cirrus Logic
TBY
25
9
Reserved. Unknown During Read.
Address Match Value.
Reserved. Unknown During Read.
Transmitter Busy Flag.
0 - Transmitter is idle, or disabled, or an abort is being
transmitted.
1 - Transmit logic is currently transmitting a frame.
Receiver In Frame.
0 - Receiver is in preamble/start flag or is in hunt mode.
1 - Receiver is in a frame.
Receiver Synchronized Flag.
0 - Receiver is in hunt mode.
1 - Receiver logic is synchronized within the incoming
data.
End of Frame.
0 - Current frame is not completed.
1 - The word in the receive buffer contains the last byte of
data within the frame. When the last word in the current
frame is read this bit is cleared.
RIF
24
8
RSVD
RSY
23
7
EOF
22
6
WST
21
5
WST
20
4
FRE
19
3
ROR
18
2
CRE
17
1
DS785UM1
RAB
16
0