20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 99
20-668-0011
Manufacturer Part Number
20-668-0011
Description
IC MPU RABIT3000A 55.5MHZ128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
Specifications of 20-668-0011
Processor Type
Rabbit 3000 8-Bit
Speed
55.5MHz
Voltage
2.5V, 2.7V, 3V, 3.3V
Mounting Type
Surface Mount
Package / Case
128-LQFP
Data Bus Width
8 bit
Maximum Clock Frequency
55.5 MHz
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 55 C
Number Of Programmable I/os
56
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
316-1061
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
20-668-0011
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
- Current page: 99 of 312
- Download datasheet (2Mb)
12.2 Dependencies
12.2.1 I/O Pins
Parallel Port E uses the pins PE0 through PE7. These pins can be used individually as data
inputs or outputs, or as external I/O strobes; four of the Parallel Port E lines can be used as
interrupt request inputs. There is also an option to input the slave port chip select on PE7.
All pins are set as inputs on startup, and the alternate pin functions are disabled.
12.2.2 Clocks
All outputs on Parallel Port E are clocked by the peripheral clock divided by two unless
changed in PECR, where the option of updating the Parallel Port E pins can be synchro-
nized to the output of Timer A1, Timer B1, or Timer B2.
12.2.3 Other Registers
12.2.4 Interrupts
External interrupts can be accepted from pins PE5, PE4, PE1 or PE0; see Chapter 7 for
more details.
12.3 Operation
The following steps must be taken before using Parallel Port E.
1. Select the desired input/output direction for each pin via PEDDR.
2. Use PECR to select the clock.
3. If an alternative function is desired for a pin, select it via PEFR, I0CR, I1CR, or SPCR.
Once the port is set up, data can be read or written by accessing PEDR. The value of an
output pin read in from PEDR will reflect its current output value, but any value written to
an input pin will not appear until that pin becomes an output.
On reset, PEDDR and PEFR are zeroed, making all pins inputs, and disabling the alternate
output functions. In addition certain bits 0, 1, 4, and 5 in PECR are zeroed to ensure that
data are clocked into the output registers when loaded. All other registers associated with
Parallel Port E are not initialized on reset.
Chapter 12 Parallel Port E
I0CR, I1CR
SPCR
Register
Select a Parallel Port E pin as an external interrupt
input.
Select slave chip select on PE7.
Function
89
Related parts for 20-668-0011
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC CPU RABBIT2000 30MHZ 100PQFP
Manufacturer:
Rabbit Semiconductor
Datasheet:
Part Number:
Description:
IC CPU RABBIT4000 128-LQFP
Manufacturer:
Rabbit Semiconductor
Datasheet:
Part Number:
Description:
Microprocessors - MPU Rabbit 3000 TFBGA Microprocessor
Manufacturer:
Rabbit Semiconductor
Part Number:
Description:
Microprocessors - MPU Rabbit 4000 LQFP Microprocessor
Manufacturer:
Rabbit Semiconductor
Part Number:
Description:
IC, I/O EXPANDER, 8BIT, 40MHZ, TQFP-64
Manufacturer:
Rabbit Semiconductor
Part Number:
Description:
SCRs 1.5A 200uA 400V Sensing
Manufacturer:
Littelfuse Inc
Datasheet:
Part Number:
Description:
CARD 6-RELAY SMARTSTAR SR9500
Manufacturer:
Rabbit Semiconductor
Datasheet:
Part Number:
Description:
WIRE-BOARD CONN RECEPTACLE, 6POS, 3.96MM
Manufacturer:
TE Connectivity
Datasheet:
Part Number:
Description:
ADAPTER 20 PIN .420" PLUGS(6PCS)
Manufacturer:
Logical Systems Inc.
Datasheet:
Part Number:
Description:
CONN BARRIER BLOCK .438" 20 POS
Manufacturer:
Cinch Connectors
Datasheet:
Part Number:
Description:
20 MODII 2PC HDR DR SHRD, ROHS
Manufacturer:
TE Connectivity
Datasheet:
Part Number:
Description:
WIRE-BOARD CONN RECEPTACLE, 6POS, 3.96MM
Manufacturer:
TE Connectivity
Datasheet: