20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 94

• 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

10.4 Register Descriptions
84
Bit(s)
Bit(s)
Bit(s)
Parallel Port C Data Direction Register
7:0
7:0
Parallel Port C Alternate Low Register
7:6
5:4
3:2
1:0
Parallel Port C Data Register
Value
Value
Value
Write
Read
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
0
1
The current state of Parallel Port C pins PC7–PC0 is reported.
The Parallel Port C buffer is written with this value for transfer to the Parallel
Port C output register on the next rising edge of the peripheral clock.
The corresponding port bit is an input.
The corresponding port bit is an output.
Parallel Port C bit 3 alternate output 0 (TXC).
Parallel Port C bit 3 alternate output 1 (I3).
Parallel Port C bit 3 alternate output 2 (TIMER C3).
Parallel Port C bit 3 alternate output 3 (SCLKD).
Parallel Port C bit 2 alternate output 0 (TXC).
Parallel Port C bit 2 alternate output 1 (I2).
Parallel Port C bit 2 alternate output 2 (TIMER C2).
Parallel Port C bit 2 alternate output 3 (TXF).
Parallel Port C bit 1 alternate output 0 (TXD).
Parallel Port C bit 1 alternate output 1 (I1).
Parallel Port C bit 1 alternate output 2 (TIMER C1).
Parallel Port C bit 1 alternate output 3 (RCLKF).
Parallel Port C bit 0 alternate output 0 (TXD).
Parallel Port C bit 0 alternate output 1 (I0).
Parallel Port C bit 0 alternate output 2 (TIMER C0).
Parallel Port C bit 0 alternate output 3 (TCLKF).
(PCDDR)
(PCALR)
(PCDR)
Description
Description
Description
Rabbit 4000 Microprocessor User’s Manual
(Address = 0x0050)
(Address = 0x0051)
(Address = 0x0052)