EP9312-IBZ Cirrus Logic Inc, EP9312-IBZ Datasheet - Page 52

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

Specifications of EP9312-IBZ

• Core Size: 16/32-Bit
• Package / Case: 352-BGA
• Core Processor: ARM9
• 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
• Controller Family/series: (ARM9)
• A/d Converter: 12 Bits
• No. Of I/o Pins: 65
• Clock Frequency: 200MHz
• 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: 598-1260

2
2-14
ARM920T Core and Advanced High-Speed Bus (AHB)
EP93xx User’s Guide
User mode in Thumb state limits access to the low registers r0-r7. To access to the high
registers, the ARM Core must first revert to the ARM state. The high registers are:
• r0-r12: General purpose read/write 32-bit registers
• r13 (sp): Stack Pointer
• r14 (lr): Link Register
• r15 (pc): Program Counter
• cpsr: Current Program Status Register containing condition codes and operating modes
r13(sp)
r15(pc)
r14(lr)
User
cpsr
r10
r12
r11
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
System
cpsr
r10
r11
r12
r13
r14
pc
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
Note: Colored areas represent banked registers.
Supervisor
Table 2-5. Register Organization Summary
spsr_svc
r13_svc
r14_svc
cpsr
r10
r11
r12
pc
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
Copyright 2007 Cirrus Logic
Privileged Modes
spsr_abt
r13_abt
r14_abt
Abort
cpsr
r10
r11
r12
pc
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
Exception Modes
Undefined
spsr_und
r13_und
r14_und
cpsr
r10
r12
r11
pc
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
spsr_irq
r13_irq
r14_irq
IRQ
cpsr
r10
r11
r12
pc
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
spsr_fiq
r10_fiq
r12_fiq
r13_fiq
r14_fiq
r11_fiq
r8_fiq
r9_fiq
FIQ
cpsr
pc
r0
r1
r2
r3
r4
r5
r6
r7
state high
state low
registers
registers
Thumb
Thumb
DS785UM1