EP9307-CRZR Cirrus Logic Inc, EP9307-CRZR Datasheet - Page 774

• Manufacturer Part Number: EP9307-CRZR
• Description: IC Universal Platform ARM9 SOC Prcessor
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9307-CRZR

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, 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: 14
• 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: 272-LFBGA
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: EDB9307A-Z
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: Q5809834A

27
27-4
IDE Interface
EP93xx User’s Guide
27.2.3 MDMA Operations
For a Write Operation.
Minimum total cycle time for the various PIO modes is as follows:
You must also setup IDECFG and WST as follows, according to the PIO mode:
For MDMA operations, DMA commands are set up using PIO operations by the host. The
registers IDEMDMADataOut and IDEMDMADataIn act as the 1-deep buffer for write and
read operations respectively. The state machine sets up the necessary signals including the
DMA request to the DMA controller.
1. Write out the register value.
2. Delay as follows, based on the PIO mode.
3. Bring DIOWn high.
4. Delay as follows, based on the PIO mode.
5. Bring DIOWn low.
6. Delay as follows, based on the PIO mode before the next read or write can occur.
PIO Mode 0 - 600 ns
PIO Mode 1 - 383 ns
PIO Mode 2 - 330 ns
PIO Mode 3 - 180 ns
PIO Mode 4 - 120 ns
PIO Mode 0 - Delay for 30 ns
PIO Mode 1 - Delay for 20 ns
PIO Mode 2 - Delay for 15 ns
PIO Mode 3 - Delay for 10 ns
PIO Mode 4 - Delay for 5 ns
PIO Mode 0 - Delay for 70 ns.
PIO Mode 1 - Delay for 50 ns.
PIO Mode 2 - Delay for 30 ns
PIO Mode 3 - Delay for 30 ns
PIO Mode 4 - Delay for 25 ns
PIO Mode 0 - Delay for 290 ns.
PIO Mode 1 - Delay for 290 ns
PIO Mode 2 - Delay for 290 ns
PIO Mode 3 - Delay for 80 ns
PIO Mode 4 - Delay for 70 ns
PIO Mode 0 - 240 ns.
PIO Mode 1 - 50 ns
PIO Mode 2 - 20 ns
PIO Mode 3 - 70 ns
PIO Mode 4 - 25 ns
Copyright 2007 Cirrus Logic
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