20-668-0003 Rabbit Semiconductor, 20-668-0003 Datasheet - Page 146

• Manufacturer Part Number: 20-668-0003
• Description: IC CPU RABBIT2000 30MHZ 100PQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0003

• Processor Type: Rabbit 2000 8-Bit
• Speed: 30MHz
• Voltage: 2.7V, 3V, 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 100-MQFP, 100-PQFP
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 30 MHz
• Operating Supply Voltage: 0 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 40
• Number Of Timers: 8 & 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 20-668-0003; 316-1062

The following table explains the parameters used in Figure 13-2.
The two SPD0R registers have special functionality not shared by the other data registers.
If the master writes to SPD0R, an inbound interrupt flip-flop is set. If slave port interrupts
are enabled, the slave processor will take a slave port interrupt. If the slave writes to the
other SPD0R register, the slave attention line (/SLAVEATTN, pin 100) is asserted (driven
low) by the slave processor. This line can be used to create an interrupt in the master.
Either side that is interrupted can clear the signal that is causing an interrupt request by writ-
ing to the slave port status register. The data bits are ignored, but the flip-flop that is the
source of the interrupt request is cleared. Figure 13-3 shows a logical schematic of this func-
tionality.
140
Tsu(SCS)
Th(SCS)
Tsu(SA)
Th(SA)
Tw(SRD)
Ten(SRD)
Ta(SRD)
Tdis(SRD)
Tsu(SRW – SRD) /SWR High to /SRD Low Setup Time
Tw(SWR)
Tsu(SD)
Th(SD)
Tsu(SRD – SWR) /SRD High to /SWR Low Setup Time
Symbol
/SCS Setup Time
/SCS Hold Time
SA Setup Time
SA Hold Time
/SRD Low Pulse Width
/SRD to SD Enable Time
/SRD to SD Access Time
/SRD to SD Disable Time
/SWR Low Pulse Width
SD Setup Time
SD Hold Time
Parameter
Rabbit 2000 Microprocessor User’s Manual
Minimum
(ns)
40
—
—
40
40
10
40
5
0
5
0
0
5
Maximum
(ns)
—
—
—
—
—
—
30
15
—
—
—
—
—