101-1156 Rabbit Semiconductor, 101-1156 Datasheet - Page 103
![no-image](/images/no-image-200.jpg)
101-1156
Manufacturer Part Number
101-1156
Description
KIT DEVELOPMENT INT'L RCM4200
Manufacturer
Rabbit Semiconductor
Series
RabbitCore 4000r
Type
MPU Moduler
Specifications of 101-1156
Contents
RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
Processor To Be Evaluated
Rabbit 4000
Data Bus Width
8 bit
Interface Type
Ethernet
Silicon Manufacturer
Rabbit Semiconductor
Core Architecture
Rabbit 4000
Kit Contents
RCM4200 Module, Prototyping Board, AC Adapter, Cable, Dynamic C CD-ROM, Getting Started Instructions
For Use With/related Products
RCM4200
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table A-8 lists the delays in gross memory access time for several values of VDD
The measurements are taken at the 50% points under the following conditions.
• T = -40°C to 85°C, V = VDD
• Internal clock to nonloaded CLK pin delay ≤ 1 ns @ 85°C/3.0 V
The clock to address output delays are similar, and apply to the following delays.
• T
• T
• T
• T
• T
• T
The data setup time delays are similar for both T
When the spectrum spreader is enabled with the clock doubler, every other clock cycle is
shortened (sometimes lengthened) by a maximum amount given in the table above. The
shortening takes place by shortening the high part of the clock. If the doubler is not
enabled, then every clock is shortened during the low part of the clock period. The maxi-
mum shortening for a pair of clocks combined is shown in the table.
Technical Note TN227, Interfacing External I/O with Rabbit Microprocessor Designs,
contains suggestions for interfacing I/O devices to the Rabbit 4000 microprocessors.
User’s Manual
VDD
(V)
3.3
1.8
adr
CSx
IOCSx
IORD
IOWR
BUFEN
, the clock to address delay
IO
, the clock to memory chip select delay
, the clock to I/O read strobe delay
, the clock to I/O write strobe delay
, the clock to I/O chip select delay
, the clock to I/O buffer enable delay
30 pF 60 pF 90 pF
Clock to Address
18
6
Output Delay
Table A-8. Preliminary Data and Clock Delays
(ns)
24
8
11
33
IO
Data Setup
Time Delay
±10%
(ns)
1
3
0.5 ns setting
setup
no dbl / dbl
2.3 / 2.3
7 / 6.5
and T
Spectrum Spreader Delay
hold
.
Worst-Case
1 ns setting
no dbl / dbl
3 / 4.5
8 / 12
(ns)
2 ns setting
no dbl / dbl
11 / 22
4.5 / 9
IO
.
97
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