20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 306

• 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

296
Bit(s)
Bit(s)
Bit(s)
6:0
6:0
7
6
5
4
3
2
1
0
7
7
Quad Decode User Enable Register
I/O Bank User Enable Register
PWM User Enable Register
Value
Value
Value
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Disable User Mode access to I/O Bank 7 (and internal I/O address 0x0087).
Enable User Mode access to I/O Bank 7 (and internal I/O addresses 0x0087).
Disable User Mode access to I/O Bank 6 (and internal I/O address 0x0086).
Enable User Mode access to I/O Bank 6 (and internal I/O addresses 0x0086).
Disable User Mode access to I/O Bank 5 (and internal I/O address 0x0085).
Enable User Mode access to I/O Bank 5 (and internal I/O addresses 0x0085).
Disable User Mode access to I/O Bank 4 (and internal I/O address 0x0084).
Enable User Mode access to I/O Bank 4 (and internal I/O addresses 0x0084).
Disable User Mode access to I/O Bank 3 (and internal I/O address 0x0083).
Enable User Mode access to I/O Bank 3 (and internal I/O addresses 0x0083).
Disable User Mode access to I/O Bank 2 (and internal I/O address 0x0082).
Enable User Mode access to I/O Bank 2 (and internal I/O addresses 0x0082).
Disable User Mode access to I/O Bank 1 (and internal I/O address 0x0081).
Enable User Mode access to I/O Bank 1 (and internal I/O addresses 0x0081).
Disable User Mode access to I/O Bank 0 (and internal I/O address 0x0080).
Enable User Mode access to I/O Bank 0 (and internal I/O addresses 0x0080).
Disable User Mode access to the PWM (I/O addresses 0x0088–0x008F and
0x00E8–0x00E9).
Enable User Mode access to the PWM (I/O addresses 0x0088–0x008F and
0x00E8–0x00E9).
These bits are reserved and should be written with zeros.
Disable User Mode access to the Quadrature Decoder (I/O addresses 0x0090–
0x0097).
Enable User Mode access to the Quadrature Decoder (I/O addresses 0x0090–
0x0097).
These bits are reserved and should be written with zeros.
(PWUER)
(QDUER)
(IBUER)
Description
Description
Description
Rabbit 4000 Microprocessor User’s Manual
(Address = 0x0388)
(Address = 0x0390)
(Address = 0x0380)