668-0003-C Rabbit Semiconductor, 668-0003-C Datasheet - Page 35
668-0003-C
Manufacturer Part Number
668-0003-C
Description
IC CPU RABBIT2000 30MHZ 100PQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0003.pdf
(228 pages)
Specifications of 668-0003-C
Rohs Status
RoHS non-compliant
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
Features
-
Other names
316-1004
668-0003
668-0003
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
668-0003-C
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
- Current page: 35 of 228
- Download datasheet (2Mb)
3.3.8 Input/Output Instructions
The Rabbit uses an entirely different scheme for accessing input/output devices. Any
memory access instruction may be prefixed by one of two prefixes, one for internal I/O
space and one for external I/O space. When so prefixed, the memory instruction is turned
into an I/O instruction that accesses that I/O space at the I/O address specified by the 16-
bit memory address used. For example
By using the prefix approach, all the 16-bit memory access instructions are available for
reading and writing I/O locations. The memory mapping is bypassed when I/O operations
are executed.
I/O writes to the internal I/O registers require only two clocks, rather than the minimum of
three clocks required for writes to memory or external I/O devices.
In certain conditions where an I/O operation is followed by a special one-byte instruction,
a bug in the original Rabbit 2000 chip causes an I/O access to take place instead of a mem-
ory access operation. The problem was corrected in revisions A–C of the Rabbit 2000.
(Refer to Appendix B for further information to determine which version of the Rabbit
2000 chip you are using.)
The bug is manifested if an I/O instruction (prefix
single-byte op codes that use HL as an index register. The 12 instructions are:
where
The only combination that is very likely to occur in user written assembly language pro-
grams is an I/O instruction followed by
The nature of the failure is that the memory address translation does not take place and so
the appropriate memory chip select will not be enabled for the second instruction. In the
case of external I/O operations where the I/O strobes on Port E may be enabled, an I/O
“chip select” (I/O strobe) will take place instead of a memory chip select. If one of the
above instructions follows an internal I/O operation and the memory access takes place in
the base region where address translation does not take place, the memory operation will
take place properly because the appropriate memory chip select is enabled for internal I/O
operations.
Chapter 3 Details on Rabbit Microprocessor Features
IOI LD A,(0x85)
LD IY,0x4000
IOE LD HL,(IY+5)
r
, an 8-byte register, is one of
ADC A,(HL)
ADD A, (HL)
AND (HL)
CP (HL)
OR (HL)
SBC A,(HL)
; loads A register with contents
; of internal I/O register at location 0x85.
; get word from external I/O location 0x4005
A
,
B
LD (HL),r
,
C
,
D
SUB (HL)
XOR (HL)
DEC (HL)
INC (HL)
LD r,(HL)
LD (HL),r
,
E
,
H
IOI
, or
.
or
L
.
IOE
) is followed by one of 12
29
Related parts for 668-0003-C
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Resistor Network,Thin Film,10KOhms,100WV,.5+/-% Tol,-25,25ppm-TC,3916-Case
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Part Number:
Description:
Resistor Network,Thin Film,10KOhms,100WV,.5+/-% Tol,-25,25ppm-TC,3916-Case
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Part Number:
Description:
SPLASH PROOF SEAL COMMAND SERIES
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
RESISTOR, BUS RES N/W 8, 1KOHM 0.5%, SOIC
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Datasheet:
Part Number:
Description:
RESISTOR, BUS N/W, 8RES 10KOHM 0.1%, SOIC
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Datasheet:
Part Number:
Description:
RESISTOR, BUS N/W, 8RES 10KOHM 0.5%, SOIC
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Datasheet:
Part Number:
Description:
RESISTOR, BUS RES N/W 8, 10KOHM, 1%, SOIC
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Datasheet:
Part Number:
Description:
RESISTOR, BUS N/W, 8RES 100KOHM 0.1% SOIC
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Datasheet:
Part Number:
Description:
RESISTOR, BUS N/W, 8RES 5KOHM 0.01%, SOIC
Manufacturer:
BI TECHNOLOGIES/TT ELECTRONICS
Datasheet:
Part Number:
Description:
Resistor Networks & Arrays 2K ohm 0.1% 16 Pin Isolated
Manufacturer:
BI Technologies
Datasheet:
Part Number:
Description:
IC MPU RABIT3000 55.5MHZ 128LQFP
Manufacturer:
Rabbit Semiconductor
Datasheet:
Part Number:
Description:
IC MPU RABIT3000A 55.5MHZ128LQFP
Manufacturer:
Rabbit Semiconductor
Datasheet:
Part Number:
Description:
Microprocessors - MPU Rabbit 3000 TFBGA 55.5 MHz Clock Speed
Manufacturer:
Rabbit Semiconductor
Part Number:
Description:
Microprocessors - MPU Rabbit 3000 TFBGA Microprocessor
Manufacturer:
Rabbit Semiconductor
Part Number:
Description:
Microprocessors - MPU 30MHz PROCESSOR 100PQFP IQ2T VERS.
Manufacturer:
Rabbit Semiconductor