20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 290

• Manufacturer Part Number: 20-668-0024
• Description: IC CPU RABBIT4000 128-LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0024

• Processor Type: Rabbit 4000 8-bit
• Speed: 60MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 20-668-0022; 316-1078

26.3 Register Descriptions
280
(rd-only)
Bit(s)
7:6
4:2
1:0
5
Global Control/Status Register
Value
000
001
010
100
101
011
110
111
00
01
10
11
00
01
10
11
0
1
No reset or watchdog timer timeout since the last read.
The watchdog timer timed out. These bits are cleared by a read of this register.
This bit combination is not possible.
Reset occurred. These bits are cleared by a read of this register.
No effect on the periodic interrupt. This bit will always be read as zero.
Force a periodic interrupt to be pending.
Processor clock from the fast clock, divided by 8.
Peripheral clock from the fast clock, divided by 8.
Processor clock from the fast clock, divided by 8.
Peripheral clock from the fats clock.
Processor clock from the fast clock.
Peripheral clock from the fast clock.
Processor clock from the fast clock, divided by 2.
Peripheral clock from the fast clock, divided by 2.
Processor clock from the 32 kHz clock, optionally divided via GPSCR.
Peripheral clock from the 32 kHz clock, optionally divided via GPSCR.
Processor clock from the 32 kHz clock, optionally divided via GPSCR.
Peripheral clock from the 32 kHz clock, optionally divided via GPSCR.
The fast clock is disabled.
Processor clock from the fast clock, divided by 4.
Peripheral clock from the fast clock, divided by 4.
Processor clock from the fast clock, divided by 6.
Peripheral clock from the fast clock, divided by 6.
Periodic interrupts are disabled.
Periodic interrupts use Interrupt Priority 1.
Periodic interrupts use Interrupt Priority 2.
Periodic interrupts use Interrupt Priority 3.
(GCSR)
Description
Rabbit 4000 Microprocessor User’s Manual
(Address = 0x0000)