EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 80

• 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

3
3-10
MaverickCrunch Co-Processor
EP93xx User’s Guide
3.3 DSPSC Register
63
47
31
15
V
Default:
Definition:
Bit Descriptions:
FWDEN
62
46
30
14
DAID
Invalid
61
45
29
13
mov
Denorm
0x0000_0000_0000_0000
MaverickCrunch Status and Control Register. Accessed only via the
MaverickCrunch instruction set. All bits, including status bits, are both
readable and writable. This register should generally be written only using a
read-modify-write sequence.
RSVD:
INST:
60
44
28
12
sub
cfstrs
sub
subs
bne
HVID
cfldrs
cfmuls
cfadds
subs
bne
pc, lr
59
43
27
11
RM[1:0]
r0, r3
c0, [r0], #4
r2, r3
r1, r1, #4
outer_loop
58
42
26
10
c3, [r2], #4
c1, c2, c3
c0, c0, c1
r12, r12, #4
inner_loop
Copyright 2007 Cirrus Logic
IXE
57
41
25
9
Reserved. Unknown During Read.
Exception Instruction. Whenever an unmasked exception
occurs, these 32 bits are loaded with the instruction that
caused the exception. Hence, this contains the instruction
that caused the most recent unmasked exception.
RSVD
UFE
56
40
24
8
INST
INST
ISAT
OFE
55
39
23
7
RSVD
54
38
22
UI
; branch if j != 0
; branch if n != 0
6
; c1 = c2 * c3;
; sum += c1;
; j -= 4;
; c3 = *filter++;
; *data++ = sum;
; n -= 4;
IOE
INT
53
37
21
5
; return to caller
; data -= m * 4;
; filter -= m * 4;
AEXC
52
36
20
IX
4
UF
51
35
19
3
SAT[1:0]
50
34
18
OF
2
RSVD
49
33
17
1
FCC[1:0]
DS785UM1
48
32
16
IO
0