20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 350

• Manufacturer Part Number: 20-668-0024
• Description: IC CPU RABBIT4000 128-LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0024

• Processor Type: Rabbit 4000 8-bit
• Speed: 60MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 20-668-0022; 316-1078

DMA channels (continued)
DMA control .......................173
E
ESD
Ethernet interface circuit .....209
Ethernet.
external I/O control .............247
H
hardware debugging.
I
input capture channels .........219
340
single-byte DMA requests
timed requests ..................173
transfer .....................186, 336
transfer priorities .............179
transfer priority ................179
transfer rates ....................180
transfers ...........................174
use with peripherals .........185
design guidelines .............334
ESD sensitivity ............2, 334
See Network Port A
auxiliary I/O bus ..............247
block diagram ..................250
clocks ...............................251
dependencies ...................251
handshake ........................249
operation ..........................252
overview ..........................247
register descriptions .........253
registers ...........................250
strobes ..............................248
See breakpoints
block diagram ..................220
clocks ...............................222
dependencies ...................222
interrupts ..................222, 223
load parallel port output regis-
measure pulse widths ......219
DMA/HDLC/Ethernet
Ethernet .......................185
HDLC serial ports .......185
PWM and Timer C ......185
auxiliary I/O bus ..........252
handshake ....................252
strobes ..........................252
example ISR ................223
to internal I/O registers
..............................186, 336
ters ...............................220
interaction .........185, 335
interrupt priorities .................68
interrupts ...............................65
modes ..............................219
operation ..........................223
overview ..........................219
register descriptions ........225
registers ...........................221
start and stop events ........219
breakpoints ......................266
DMA channels 174, 177, 179
external interrupt vector table
external interrupts ........69, 70
input capture channels 222, 223
internal interrupt vector table
interrupt priorities ..............68
memory management ........45
Network Port A .......205, 207
operation ............................66
Parallel Port D ...................91
Parallel Port E .................101
priority levels ....................65
PWM ...............239, 242, 243
quadrature decoder ..232, 234
Serial Ports A – D ...........134
Serial Ports E – F .............149
slave port .........161, 163, 166
system management 31, 33, 34
System/User mode ..286, 292
Timer A ...................108, 111
Timer B ...................116, 117
Timer C ...................124, 125
input-capture mode ......219
input-count mode .........219
input-capture mode ......224
input-count mode .........220
example ISR ................267
example ISR ................179
block diagram ................69
clocks .............................70
dependencies .................70
example ISR ..................70
interrupt vectors .............70
operation ........................70
register descriptions .......71
registers .........................70
example ISR ................223
example ISR ................243
example ISR ................235
example ISR ................166
example ISR ................111
example ISR ................117
example ISR ................125
.......................................67
.......................................66
Rabbit 4000 Microprocessor User’s Manual
L
land pattern
low-power operation ...........271
LQFP package
M
memory
memory management ............41
memory protection ................52
BGA package ..................325
LQFP package .................322
clock rates ........................273
current draw for ultra sleepy
current draw vs. clock
handling unused pins .......273
operation ..........................273
overview ..........................271
register descriptions ........280
registers ...........................272
self-timed chip selects .....279
short chip selects .............274
mechanical dimensions ...322
read and write cycles (no wait
block diagram ....................43
clocks .................................45
dependencies .....................45
interrupts ...........................45
logical memory space ........42
mapping physical memory
MMU operation .................47
operation ............................46
overview ............................41
physical and logical memory
register descriptions ..........53
registers .................44, 45, 46
clock modes .................273
16-bit and page modes ...49
8-bit operation ...............47
advanced memory modes
instruction and data space
memory protection ........52
MMU .............................46
read and write transactions
stack protection ..............52
stack protection/DMA
modes ..........................272
frequency ....................271
states) ..........................307
space ..............................41
mapping ........................42
interaction ...........52, 335
.....................................49
.....................................52
.....................................50