20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 140

• 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

17.4 Register Descriptions
130
Bit(s)
Bit(s)
Bit(s)
7:0
7:0
7:0
Serial Port x Long Stop Register
Serial Port x Address Register
Serial Port x Data Register
Value
Value
Value
Write
Write
Write
Read
Read
Read
Returns the contents of the receive buffer.
Loads the transmit buffer with a data byte for transmission.
Returns the contents of the receive buffer. Reading the data from this register in
the clocked serial mode automatically causes the receiver to start a byte-receive
operation, eliminating the need for software to issue the start-receive command.
Loads the transmit buffer with an address byte, marked with a “zero” address bit,
for transmission. Writing the data to this register in the clocked serial mode
causes the transmitter to start a byte-transmit operation, eliminating the need for
the software to issue the start-transmit command.
Returns the contents of the receive buffer.
Loads the transmit buffer with an address byte, marked with a “one” address bit,
for transmission.
(SADR)
(SBDR)
(SCDR)
(SDDR)
(SAAR)
(SBAR)
(SCAR)
(SDAR)
(SALR)
(SBLR)
(SCLR)
(SDLR)
Description
Description
Description
Rabbit 3000 Microprocessor User’s Manual
(Address = 0x00C0)
(Address = 0x00D0)
(Address = 0x00E0)
(Address = 0x00C1)
(Address = 0x00D1)
(Address = 0x00E1)
(Address = 0x00C2)
(Address = 0x00D2)
(Address = 0x00E2)
(Address = 0x00F0)
(Address = 0x00F1)
(Address = 0x00F2)