20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 100

• Manufacturer Part Number: 20-668-0011
• Description: IC MPU RABIT3000A 55.5MHZ128LQFP
• Manufacturer: Rabbit Semiconductor

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

12.4 Register Descriptions
90
Bit(s)
Bit(s)
Bit(s)
Bit(s)
Parallel Port E Data Direction Register
7:0
7:6
5:4
3:2
1:0
7:0
7:0
Parallel Port E Function Register
Parallel Port E Control Register
Parallel Port E Data Register
Value
Value
Value
Value
Write
Read
00
00
01
10
11
00
00
01
10
11
0
1
0
1
The current state of Parallel Port E pins PE7–PE0 is reported.
The Parallel Port E buffer is written with this value for transfer to the Parallel
Port E output register on the next rising edge of the peripheral clock.
These bits are ignored and should be written with zero.
The upper nibble peripheral clock is perclk/2.
The upper nibble peripheral clock is the output of Timer A1.
The upper nibble peripheral clock is the output of Timer B1.
The upper nibble peripheral clock is the output of Timer B2.
These bits are ignored and should be written with zero.
The lower nibble peripheral clock is perclk/2.
The lower nibble peripheral clock is the output of Timer A1.
The lower nibble peripheral clock is the output of Timer B1.
The lower nibble peripheral clock is the output of Timer B2.
The corresponding port bit is a parallel port I/O pin.
The corresponding port bit is an I/O strobe.
The corresponding port bit is input.
The corresponding port bit is an output.
(PEDDR)
(PEDR)
(PECR)
(PEFR)
Description
Description
Description
Description
Rabbit 3000 Microprocessor User’s Manual
(Address = 0x0070)
(Address = 0x0074)
(Address = 0x0075)
(Address = 0x0077)