EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 136

• 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
5-10
System Controller
EP93xx User’s Guide
5.1.6.2 System Power States
HCLK to the USB Hosts can be gated off as well to further save power. The USH_EN bit in
the
The EP93xx has three power states:
Figure 5-4
• Run mode: Normal operation mode.
• Halt: ARM Core stops executing instructions.
• Standby: Power is on, but only SDRAM self-refresh and the RTC run.
"PwrCnt"
illustrates the transitions among power states.
register serves the purpose.
Peripheral
Watchdog
KEYPAD
UART1
UART2
UART3
PWM
GPIO
IRDA
SEC
TSC
AAC
SSP
RTC
I
2
S
Table 5-4. Peripherals with PCLK Gating
Copyright 2007 Cirrus Logic
on with Enable or
Peripheral/PCLK
Register Access
x
x
x
x
x
x
x
x
x
-
-
-
-
-
Register Access
PCLK on with
Only
x
x
x
-
-
-
-
-
-
-
-
-
-
-
PCLK Continuous
x
x
-
-
-
-
-
-
-
-
-
-
-
-
DS785UM1