20-668-0003 Rabbit Semiconductor, 20-668-0003 Datasheet - Page 185

• 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

18.5 16-bit Load and Store 20-bit Address
Note that the LDP instructions wrap around on a 64K page boundary. Since the LDP instruc-
tion operates on two-byte values, the second byte will wrap around and be written at the
start of the page if you try to read or write across a page boundary. Thus, if you fetch or
store at address 0xn,0xFFFF, you will get the bytes located at 0xn,0xFFFF and
0xn,0x0000 instead of 0xn,0xFFFFand 0x(n+1),0x0000 as you might expect. Therefore,
do not use LDP at any physical address ending in 0xFFFF.
18.6 Register to Register Moves
Chapter 18 Rabbit Instructions
Instruction
LDP (HL),HL
LDP (IX),HL
LDP (IY),HL
LDP HL,(HL)
LDP HL,(IX)
LDP HL,(IY)
LDP (mn),HL
LDP (mn),IX
LDP (mn),IY
LDP HL,(mn)
LDP IX,(mn)
LDP IY,(mn)
Instruction
LD r,g
LD A,EIR
LD A,IIR
LD A,XPC
LD EIR,A
LD IIR,A
LD XPC,A
LD HL,IX
LD HL,IY
LD IX,HL
LD IY,HL
LD SP,HL
LD SP,IX
LD SP,IY
LD dd',BC
LD dd',DE
clk
12
12
12
10
10
10
15
15
15
13
13
13
clk
2
4
4
4
4
4
4
4
4
4
4
2
4
4
4
4
A
A
r
fr
fr
r
r
r
I S Z V C
I S Z V C
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
* * - -
* * - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
Operation
(HL) = L; (HL+1) = H.
(Adr[19:16] = A[3:0])
(IX) = L; (IX+1) = H.
(Adr[19:16] = A[3:0])
(IY) = L; (IY+1) = H.
(Adr[19:16] = A[3:0])
L = (HL); H = (HL+1).
(Adr[19:16] = A[3:0])
L = (IX); H = (IX+1).
(Adr[19:16] = A[3:0])
L = (IY); H = (IY+1).
(Adr[19:16] = A[3:0])
(mn) = L; (mn+1) = H.
(Adr[19:16] = A[3:0])
(mn) = IXL; (mn+1) = IXH.
(Adr[19:16] = A[3:0])
(mn) = IYL; (mn+1) = IYH.
(Adr[19:16] = A[3:0])
L = (mn); H = (mn+1).
(Adr[19:16] = A[3:0])
IXL = (mn); IXH = (mn+1).
(Adr[19:16] = A[3:0])
IYL = (mn); IYH = (mn+1).
(Adr[19:16] = A[3:0])
Operation
r = g; r,g any of B,
C, D, E, H, L, A
A = EIR
A = IIR
A = MMU
EIR = A
IIR = A
XPC = A
HL = IX
HL = IY
IX = HL
IY = HL
SP = HL
SP = IX
SP = IY
dd' = BC (dd': 00-BC',
01-DE', 10-HL')
dd' = DE (dd': 00-BC',
01-DE', 10-HL')
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