EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 404
![IC ARM9 SOC PROCESSOR 208LQFP](/photos/12/23/122383/mfg_ep9301_parts_sml.jpg)
EP9301-CQZ
Manufacturer Part Number
EP9301-CQZ
Description
IC ARM9 SOC PROCESSOR 208LQFP
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9301-CQZ
Core Size
16/32-Bit
Peripherals
AC'97, DMA, I²:S, LED, MaverickKey, POR, PWM, WDT
Core Processor
ARM9
Speed
166MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
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
0°C ~ 70°C
Package / Case
208-TQFP, 208-VQFP
Controller Family/series
(ARM9)
No. Of I/o's
19
Ram Memory Size
16MB
Cpu Speed
166MHz
No. Of Timers
4
Digital Ic Case Style
TQFP
Embedded Interface Type
SPI
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
598-1136
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP9301-CQZ
Manufacturer:
CIRRUS
Quantity:
3 390
Part Number:
EP9301-CQZ
Manufacturer:
CIRRUSLOGIC
Quantity:
20 000
Company:
Part Number:
EP9301-CQZR
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
- Current page: 404 of 824
- Download datasheet (13Mb)
10
10-10
10.1.10.1.1 DMA_IDLE
10.1.10.1.2 DMA_STALL
DMA Controller
EP93xx User’s Guide
10.1.10 M2M DMA Functional Description
10.1.10.1 M2M DMA Control Finite State Machine
BCR_EQ_BWC
Each DMA M2M channel is controlled by 2 finite state machines (FSM) which determine
whether the channel is transferring data to or from memory, which buffer from the double-
buffer descriptor set it is using, and whether it is currently generating an interrupt.
The DMA M2M Control FSM always resets to the DMA_IDLE state.
The DMA Control M2M FSM always enters the DMA_IDLE state when a channel is disabled
(CONTROL[3]).
The DMA Control M2M FSM exits the DMA_IDLE state and moves to the DMA_STALL state
when the ENABLE bit of the CONTROL register is set.
The DMA M2M Control FSM enters the DMA_STALL state when an M2M channel is enabled.
No STALL interrupt is generated for this condition.
The DMA M2M Control FSM enters the DMA_STALL state when a memory-to-memory
transfer has completed successfully. The DONE and STALL interrupts are generated for this
condition, if enabled.
DMA_BWC_WAIT
DMA_MEM_WR
DISABLE
Figure 10-2. M2M DMA Control Finite State Machine
DISABLE
RX_TFR_END
Copyright 2007 Cirrus Logic
RX_TFR_END
TX_TFR_END
DMA_IDLE
DISABLE
DISABLE
DMA_MEM_RD
ENABLE
DONE/DEOT
DMA_STALL
(START, DREQ,
or TXREQ)
and BCR_VALID
IDEREQ, RXREQ,
DS785UM1
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