EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 150

• 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, I&sup2: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

5
BootModeClr
5-24
System Controller
EP93xx User’s Guide
31
15
Address:
Definition:
Bit Descriptions:
30
14
29
13
28
12
DMA_ENFIQ:
USH_ENIRQ:
USH_ENFIQ:
MAC_ENIRQ:
MAC_ENFIQ:
0x8093_0058 - Write Only
The BootModeClr register is a write-to-clear register. Reset activates the boot
ROM remap function causing the internal boot ROM to map to address zero, if
internal boot is selected. Writing BootModeClr removes the internal ROM
address remap, restoring normal address space.
RSVD:
27
11
26
10
Copyright 2007 Cirrus Logic
25
9
When set the arbiter will degrant DMA from the AHB bus
and will ignore subsequent requests from DMA if an FIQ is
active. When FIQ is cleared the DMA request is allowed
again. There is no impact on other masters. Reset to 0.
When set the arbiter will degrant USB host from the AHB
bus and will ignore subsequent requests from the USB
Host if an IRQ is active. When IRQ is cleared, the USB
Host request is allowed again. There is no impact on other
masters. Reset to 0.
When set the arbiter will degrant USB Host from the AHB
bus and will ignore subsequent requests from USB Host if
an FIQ is active. When FIQ is cleared, the USB Host
request is allowed again. There is no impact on other
masters. Reset to 0.
When set the arbiter will degrant Ethernet MAC from the
AHB bus and will ignore subsequent requests from the
MAC if an IRQ is active. When IRQ is cleared, the MAC
request is allowed again. There is no impact on other
masters. Reset to 0.
When set the arbiter will degrant the Ethernet MAC from
the AHB bus and will ignore subsequent requests from the
MAC if an FIQ is active. When FIQ is cleared, the MAC
request is allowed again. There is no impact on other
masters. Reset to 0.
There are no readable bits in this register.
24
8
RSVD
RSVD
23
7
22
6
21
5
20
4
19
3
18
2
17
1
DS785UM1
16
0